269. Exotic Grammar Structures 7

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Some English grammar structures are unlikely to be described in language coursebooks

THE NATURE OF “EXOTIC” STRUCTURES

English has plenty of grammar structures that are so uncommon in language coursebooks that they could be called “exotic”. Some are of this kind because they have not been clearly identified by grammarians. Many others are just omitted because they are rare: there is usually insufficient space to cover the whole of English grammar, and the more common structures are preferred in the belief that they maximise learners’ chances of success in communication.

However, structures that are not common in language-learning coursebooks can still be useful to know, especially for English users with a more advanced competence, who are the target audience of this blog. It is in this belief that posts like the present one are offered. Six exotic structures are described below. To access the other posts, see 88. Exotic Grammar Structures 1.

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STRUCTURE LIST

1. “Not that”

EXAMPLES

(a) Working from home is becoming more widespread, not that people are working less.

(b) Higher alcohol taxes are coming, not that they will reduce drinking.

Not that combines the message “but this does not entail that” with either reassurance, as in (a), or scepticism, as in (b). The denied idea after it is a conclusion that the speaker expects many people would reach.

Because not that needs at least two separate verbs in its sentence (underlined above), it is a conjunction. Superficially, it resembles the large number of other “multi-word” conjunctions that end with that, such as seeing that, now that and on condition that (see 230. Multi-Word Conjunctions, #1). However, there is an important difference.

One aspect of the difference is the inability of not that to go before its associated verbs as well as between them. Most other …that conjunctions certainly do not have this restriction. For example, if not in (a) is replaced by provided, it and the words after it could easily occupy the start of the sentence.

One or other of these contrasting position rules actually applies to every conjunction, so that two clear subgroups can be identified (see 174. Eight Things to Know about Conjunctions, #3). Conjunctions like provided that are technically called “subordinating”, those like not that “coordinating”.

These names reflect a further difference between the two types. Whereas subordinating conjunctions introduce information that is not the central message of their sentence, coordinating ones, including not that, introduce information that has equal centrality with the information before them. Reflecting this, a coordinating conjunction and the information after it can in less formal contexts be separated from the information before it by a full stop instead of a comma. This means not that can start a sentence in the same informal way as and, so or but (see 25. Conjunction Positioning).

The meaning of not that results in some fairly predictable wording after it. Common examples are …this should cause concern, …anyone cares, …much changed, …it makes any difference and …it did any good.

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2. “Never” + Infinitive

EXAMPLE

(c) Magellan sailed to the Pacific, never to return.

A to verb (infinitive) after words that could stand alone as a complete sentence names either a purpose or a subsequent event (usually a past one but sometimes future). Logical possibility will often indicate when an infinitive in this position has the latter meaning, and the presence of a preceding comma is usually a clue as well (see 246. Tricky Grammar Contrasts 2, #5).

Never before an infinitive in this position is also associated with the non-purpose use, helping to name the non-occurrence rather than occurrence of a later event. It seems usually to be preferred to not.

However, this is not the only use of never to. It can also go straight after was or were, without an intervening comma: Magellan was never to return. Here, the meaning is more like “future in the past”, naming the destiny of the verb’s subject (Magellan). In this case, not and never seem more equally possible, the latter being more emphatic. Destiny-naming is also possible with positive infinitives: for details, see 119. BE before a “to” Verb, #8.

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3. Superlative Adjective + Adjective / Adverb

EXAMPLE

(d) Air travel is the fastest type available.

In this example, the superlative adjective the fastest is part of an adjective phrase with the subsequent defining adjective available  A previous post within this blog (194. Adverbs that Say How Much) lists particular preceding adverbs that can make superlative adjectives into a longer phrase, but does not say much about what can be added after.

The main phrase-making words possible before the + superlative adjective are, in roughly ascending order of strength, just about, fractionally, marginally, much, easily, very much, by far, far and away and quite. There is also maximum-strength the very (without a following the).

The main words usable after the + superlative adjective are available, by far, conceivable, ever, imaginable, possible, so far, up to a point and yet. A notable absentee is far and away (see 292. Synonym Pairs with Contrasting Grammar 2, #6). When the superlative’s partner noun follows it, like type in (d), by far, so far, up to a point and yet go last, but the others can precede the noun.

Only by far and up to a point are “degree” adverbs. Ever, so far and yet are time adverbs (for details of ever, see 272. Uses of “Ever”, #3); the others (underlined) are adjectives – all of the -able/-ible kind.

For some other kinds of partner word with superlatives, see 305. Wording next to Superlatives.

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4. Superlative Adjective + Infinitive

EXAMPLE

(e) Jones is the latest (writer) to accept the theory.

Grammar books that mention this use of to (infinitive) verbs point out that it corresponds to a relative clause– who accepts the theory above. What is not always made clear, however, is that some infinitives after a superlative lack this correspondence. The key factor is the kind of superlative adjective used.

Some adjectives in their non-superlative form also allow a following infinitive (see 83. Adjectives before a “to” Verb). Happy is one – happy to accept could easily fit into (e) – but late (meaning “recent”) is not. However, when a non-superlative has a following infinitive, there is rarely any correspondence to a relative clause (*Jones is happy who accepts…).

Infinitives after a superlative adjective correspond to a relative clause only when the adjective is the kind that, like latest, cannot usually precede an infinitive in their base form. Infinitives after other superlative adjectives, such as happiest, are as unable to be paraphrased as relative clauses as infinitives after these adjectives’ base forms. Other superlatives like latest include earliest, most famous, oldest and youngest. The superlative-like adjectives first and next are used similarly.

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5. Repeated Nouns Separated by “after”

EXAMPLE

(f) Caller after caller made the same request.

This combination is an alternative to saying one (noun) after another. It is similar in meaning to every placed before one of the two nouns. It thus highlights an absence of exceptions. The main difference is an implication concerning the number of instances being referred to. Every is neutral about the size of this number: it can refer to any quantity down to a minimum of three (see 169. “All”, “Each” and “Every”). The after combination, by contrast, always implies a large number, and is more emphatic as a result.

The involvement of two nouns with after suggests that the combination is typically found in noun positions in sentences (subject, object etc.). However, although use in these positions is indeed common, use in adverb positions is notable too. Like other noun expressions usable in adverb positions without a preceding preposition, such as this week, the day before yesterday, a month ago and three days a week, adverbial after expressions are time-referring. Like the last of the examples, they refer not to a point in time (= when) but to a frequency (= how often). For more on these meaning types, see 227. Time Adverbs.

Common examples of adverbial after phrases are hour after hour, day after day, time after time and term after term.

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6. “About” + Infinitive

EXAMPLE

(g) Electric cars are about to become common.

In this combination, typically located in the “complement” position after a link verb like BE, about indicates imminence of a future action, and the following infinitive (to verb) identifies the action. The use is similar to that of going to (see 176. Ways of Using GO, #7), but expresses greater imminence.

The combination is often mentioned in English coursebooks, but not all point out that the imminence of the event does not guarantee its actual occurrence: in many cases, especially in historical description, the point is non-occurrence:

(h) Alexander was about to make Babylon his capital, when he died.

This means the ambition of Alexander was frustrated at the last minute. The cause of the non-occurrence is indicated in a very typical way: with when (meaning “and then”), often after a comma. For more on this kind of when, see 271. Tricky Grammar Contrasts 3, #4.

An even more imminent occurrence can be expressed by adding just before about. Alternatively, about to can be replaced by on the + brink / point / verge + of -ing, or by close to -ing. For more ways of describing the future, see 147. Types of Future Meaning.

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7. Special Verb Form after Adjective + “that”

EXAMPLE

(i) Motorists are insistent that parking remain free.

In this sentence, the verb remain is in the present simple tense after the singular subject parking, but lacks the expected -s ending. The reason is that the verb form is a special type known as the “subjunctive”, which never has an ending (BE subjunctives being just be). “Subjunctive” is one of three verb form types that grammarians say can be the only verb in an English sentence, the others being the familiar ordinary type (“indicative”) and the “imperative” (see 128. Imperative Verbs in Formal Writing).

What makes the subjunctive possible in (i) is the naming of a desired future after a speech-indicating word (here insistent) + that…. Such futures may never occur, and uncertain occurrence is the typical meaning of the subjunctive form. Other adjectives usable like insistent include adamant, concerned, desirous, desperate, determined, eager and keen (see 300. Adjective Indicators of Indirect Speech, #1).

Using that… after these adjectives expands them into a longer adjective phrase (see 203. Expanding an Adjective with Words after it). Usually, this is also possible without that, and hence without a subjunctive. For example, desirous is often expanded by of (e.g. desirous of reform). A common reason for preferring that is a following verb whose subject is different from that of the main verb – cp. motorists and parking in (i).

Subjunctive verbs are quite an “exotic” form in English because they are not just rare, but mostly optional. This is the case in (i), where remains would also be correct. For some other subjunctive uses, see 88. Exotic Grammar Structures 1, #6.

268. Types of “-self” Object

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Objects ending in“-self” do not all act in the same way

 THE COMPLEXITY OF “-SELF” OBJECT USAGE IN ENGLISH

Acting as an “object” after an active verb is one of various roles of -self words (“reflexive pronouns”) that this blog considers in an earlier post (143. Subtleties of “-self” Words). I point out there that different verbs work with these objects in different ways, but the examples are brief and the full range of possibilities is not specified.

Here I wish to survey object -self words in depth. I feel this is useful because they are surprisingly common in English but rarely seem to be used in exactly the same ways as their numerous equivalents in various other languages. My investigations indicate that English -self objects can accompany a verb in at least five different ways. With all of them, the -self object is a direct one, and not accompanied by any other direct object in the way that seems possible in some other languages.

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RECOGNITION OF “-SELF” OBJECTS

Most readers of this blog will know already what is meant by “object of a verb” (clarification, if needed, is available in 8. Object-Dropping Errors). In the following sentence, themselves is the object of the verb transmit:

(a) Some programs transmit themselves to other computers.

In considering the object use of -self words, it is necessary to appreciate that they can easily occupy an object position in a sentence without actually being an object:

(b) Gomez thinks herself that the theory is flawed.

(c) Saeed does himself no harm in making these observations.

Herself in (b) is not an object of thinks because it can be repositioned after the subject Gomez without a meaning change. The true object starts with that (see 153. Conjunction Uses of “that”, #1). This use of a -self word indicates a contrast between the noun before it (Gomez) and some other people or things – here people with alternative views (see 143. Subtleties of “-self” Words, final section).

In (c), himself is the wrong kind of object: “indirect” instead of “direct”. This means there is another noun near it that is the main object (no harm above), and the two can exchange positions, the indirect object then having a preposition (to above) in front of it (see 126. Verbs with an Indirect Object). Himself in (c) has the typical meaning of indirect objects: recipient of the event expressed by both does and its main object no harm (see 213. Special Uses of DO 2, #2).

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WAYS IN WHICH “-SELF” OBJECTS ACCOMPANY A VERB

As mentioned above, -self objects do not all work with their verb in the same way. In most cases, it seems to be the choice of verb that determines the kind of combination that -self objects make. The following are the main verb categories.

1. Verbs that Mean the Same with any Object Type

Verbs of this kind keep the same meaning with a -self object that they have with other objects. Most verbs with a -self object are of this kind. Transmit in (a) is an example: its meaning is unchanged regardless of whether it has an ordinary object like data or a -self object like themselves.

Other verbs that act similarly include ATTACH, COVER, EXAMINE, HURT, IMAGINE, INDULGE, INTRODUCE, OBSERVE, PHOTOGRAPH, PUSH, SEE and SURPASS. Note that INDULGE SOMEONE/ONESELF (= “enable…to enjoy”) loses its ability to have a -self object in the prepositional verb INDULGE IN (= “participate with enjoyment in…”).

A slight problem associated with this use of -self objects is that some verbs use something other than a -self word to express the same idea of doing to oneself what could also be done to others, and there is no reliable way of predicting which verbs have which properties. For example, HIDE expresses this meaning just by being used without an object (HIDE ONESELF does exist but means a particular type of hiding: covering oneself with view-blocking material). As a consequence, the properties of particular verbs often have to be individually memorised.

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2. Object-Needing Verbs Given New Meaning by a -self Object

This important category is well illustrated by the prepositional APPLY (object) TO (a problem). With an ordinary object, the meaning is “put on in order to mend” (see 261. Words with Complicated Grammar 3, #1). With a -self object, it means “work maximally on (a problem)”:

(d) Faraday applied himself to winning over his critics.

Note the need here for winning rather than win (see 35. Words Followed by “to -ing”). Other verbs that acquire a special meaning when used with a -self object include:

ACQUIT ONESELF (+ manner) = deal with a challenge (+ manner)
ANNOUNCE ONESELF = become noticed through a successful enterprise
ASSERT ONESELF = be assertive
CALL ONESELF (+ name) = choose to be known as (name)
CARRY ONESELF (+ manner) = move one’s body (+ manner)
DEPORT ONESELF (+ manner) = behave (+ manner)
DISTINGUISH ONESELF = perform outstandingly
ENJOY ONESELF = have a good time (see 8. Object-Dropping Errors).
EXCUSE ONESELF = leave with an apology
EXERT ONESELF = deploy extra effort
EXPLAIN ONESELF = justify one’s past actions
EXPRESS ONESELF = convey one’s thoughts and personality
LOSE ONESELF= become engrossed
OVERREACH ONESELF = fail through trying too hard
PLEASE ONESELF = act according to one’s own wishes
TELL ONESELF SOMETHING = assert something silently (to calm or motivate)
THROW ONESELF INTO SOMETHING= do something with maximum effort

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3. Verbs with a Removable Object

This verb type has two subgroups. One is what I have elsewhere called “object-dropping”: without an object the verbs imply one that could easily be added if required. With some verbs of this kind, e.g. COOK (food), DRIVE (a vehicle) and SMOKE (a cigarette), the implied object is not a -self one. With others, however, it is. Most indicate an action applied to the human body, such as DRESS, HIDE, LIE DOWN, SHAVE and WASH. Using a -self word after one of these creates a special meaning.

The other subgroup is verbs like DEVELOP, which are usable both with and without an object, but in the latter case have a passive-like meaning. For example, to say that a country is developing indicates that it is undergoing development rather than giving it to someone else (see 4. Verbs that don’t Have to be Passive). An unmentioned -self object after a verb of this type is not so strongly suggested, but again a -self object can be mentioned in order to express a special meaning.

The typical effect of using a -self object with either of these verb types is to associate the verb’s meaning with increased independence and/or special conscious effort. Object-dropping verbs tend to acquire the independence meaning. For example, adding themselves after dress, wash and lie…down means dressing, washing and lying down without normally-received help from someone else. HIDE is a rare exception in expressing a particular type of hiding rather than independence.

After some verbs of the second type, such as EXPAND and OPERATE, a -self object similarly indicates surprising independence (see 233. Structures with a Double Meaning 3, #4); but after many, such as DEVELOP, IMPROVE and STOP, it indicates use of an unusual amount of conscious effort. With a few individual verbs, a slightly different new meaning again occurs. For example, while TRAIN usually represents development of fitness or skill, TRAIN ONESELF typically represents development of desirable habits.

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4. Verbs that Typically Lack an Object

Whereas all of the verbs considered so far are at least sometimes usable with a direct object that is not a -self word, verbs in this small group can only replace a -self object with no object at all, the meaning being different in each case. An example is BEHAVE. Without any object, it means “act”; with one it means “avoid bad behaviour” or “not cause trouble”.

Similarly, EXCEL (= be the best) means with a -self object “give one’s best ever performance”. There is also an idiomatic use of WORK – WORK ONESELF INTO THE GROUND, meaning “work until too tired to continue”.

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5. Verbs that Typically Have a -self Object

Verbs in this category seem to be usable only with a -self object. They include:

ABSENT ONESELF: choose to be absent
AVAIL ONESELF OF: utilise
CONCERN ONESELF WITH: give attention to…
CONTENT ONESELF WITH: accept (see 254. Tricky Word Contrasts 10, #1)
DISTANCE ONESELF FROM: avoid close contact with…
HELP ONESELF TO: freely take
RESIGN ONESELF TO: unwillingly accept
TAKE IT UPON ONESELF (+ to verb): decide to be the person (doing something) (see the very end of 264. Variations in the Use of TAKE).

Underlining here indicates the surprising number of these verbs that have a typical preposition after their -self object, making them a type of “prepositional” verb (see 123. Prepositional Verbs Containing a Noun). As a result, any further verb straight after them needs -ing, not to – like winning in sentence (d).

Note that CONCERN and HELP are listed in this group despite the fact that they are also usable with an ordinary object. What qualifies them to be mentioned here is their need for a partner preposition, plus their substantially different meanings (CONCERN + ordinary object = “involve” or “worry”; HELP + ordinary object = “assist”).

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OTHER OBSERVATIONS

-self words can also follow BE, but of course they will be complements, not objects (see 220. Features of Complements). BE ONESELF means “act normally”. A few other complement-taking verbs allow a -self complement with a similar meaning (APPEAR, BECOME, FEEL, LOOK, REMAIN, SEEM).

An interesting verb that has emerged in recent times is SELF-ISOLATE (= “keep oneself away from others”). Giving a verb an object-like self- prefix instead of a -self object well illustrates how grammar (-self pronouns) can be reworded in a non-grammatical way (see 298. Grammar Meanings without Grammar). It is quite rare, but could be a developing trend.

A much more common use of the -self prefix is with adjectives and nouns (see the end of 146. Some Important Prefix Types). Common adjective examples include self-conscious, self-important, self-made, self-perpetuating, self-possessed, self-raising, self-righteous, self-serving, self-sustaining and self-taught.

Noun examples tend to indicate actions. Common ones include self-advancement, self-delusion, self-denial, self-destruction, self-esteem, self-harm, self-importance, self-motivation, self-pity, self-preservation, self-referral, self-regard, self-reliance, self-respect and self-sacrifice. Other possibilities may be discoverable from the extensive list of action nouns offered in this blog in 249. Action Noun Endings.

267. Participles and Gerunds with “Having”

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Participles and gerunds with “having” have surprisingly many uses, but fewer than uses without it

FORMS AND OCCURRENCE

Verbs comprising having and a “past participle” (a verb with -ed or irregular equivalent, as in having considered or having seen) feature in most advanced English coursebooks. However, the focus tends to be rather limited, being mainly on one particular participle use:

(a) Having worked as a journalist, Hemingway wanted to write fiction.

The passive form of having participles with this use is also quite commonly mentioned. In (a), for example, the starting verb could be having been employed. Passive forms still require a “past participle” after having (usually been) but they also need a further one after that (occupied).

What is rarely made clear is that verbs with having are usable in two rather different ways as participles, and in various further ways as gerunds, just as ordinary -ing verbs are (see 71. Gerund and Participle Uses of “-ing”). This post aims to show in detail what is and is not possible with having verbs.

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USES OF “HAVING…” PARTICIPLES

Participles made with having always refer to an event or situation located earlier in time than that of the main verb in their sentence. Like ordinary participles, they often suggest a causal link. Sentence (a) illustrates one of two main ways in which they may be used:

(a) Having worked as a journalist, Hemingway wanted to write fiction.

Here, the participle having worked is part of a parenthesis describing the subject of the main verb, Hemingway. The parenthesis starts the sentence above, but it could also come later (with a comma before and after), or even at the end. The meaning of (a) is that Hemingway’s journalism work completely preceded his fiction-writing desire, and may have caused it.

The same sort of sentence is also common with ordinary participles – for example working instead of having worked above – usually to indicate simultaneous rather than previous occurrence (see 75. How to Avoid “Dangling” Participles). However, ordinary participle phrases at the end of a sentence can express further meanings that are not possible with having ones, such as manner (without a preceding comma) and consequence (see 101. Add-On Participles).

Moreover, starting -ing participles do not always indicate simultaneity:

(b) Noticing the absence of bacteria in one sample, Fleming isolated penicillin.

Here, the logically earlier action of noticing does not necessitate the use of having (though it does not rule it out it either). I think it is a particular kind of verb that enables -ing participles to indicate earlier occurrence in the way having ones do: the instantaneous-action type. Neither WORK nor GROW is of this type; other verbs besides NOTICE that are include END and STRIKE (see 225. Simultaneous Occurrence).

It may be, with instantaneous-action verbs like NOTICE, that the simple -ing form says the main-verb action follows immediately afterwards, while having… is vague about immediacy.

The second use of having participles is similar to the first, but describes a noun before them rather than the subject of the main verb:

(c) (With) the weather having become worse, Scott postponed departure.

Again, using an ordinary -ing participle (becoming above) instead of a having one would suggest a degree of simultaneity. In addition, ordinary participles used like this seem more likely than having ones to have with before their subject (see the end of 75. How to Avoid “Dangling” Participles).

The fact that having participles are only usable in the above two ways means that they cannot appear in sentences like the following:

(d) Plants growing in poor soil will develop slowly.

The absence of a comma between a noun (plants) and an ordinary participle (growing) shows a correspondence to a relative clause, in this case that grow…(see 52. Participles Placed Just after their Noun).

To express the meaning of having… in such sentences, it is normal to use that or which with a verb in the present perfect tense: Plants that have grown… in (d). If the verb is passive (e.g. being grown above), the having meaning can be expressed either with that + HAVE + been (Plants that have been grown…), or more simply with just a lone past participle (Plants grown…). Having (been) grown is not an option in sentences like (d) because it would create a sentence like (a), implying a “because” clause rather than a relative one, and necessitating surrounding commas.

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GERUND USES

Gerunds are -ing verbs in a noun role (see 70. Gerunds). Simple -ing gerunds are usable in practically all of the common noun positions, but having… ones are more restricted. They are never possible between the…of (the achieving of X could never become *the having achieved of X) and elsewhere they are only sometimes possible.

1. Verb Subject

ORDINARY GERUND USE: (e) Smoking causes disease.

Gerunds with having… cannot normally be used like smoking here as the subject of another verb. To express their “earlier in time” meaning, it is possible instead to use the to have… (infinitive) form. Since English does not like starting sentences with an infinitive, it usually comes later, after a starting it (see 103. Representing a Later Statement with “it”):

(f) It causes disease to have smoked.

The one situation where having might sometimes be preferred is where It… is followed by BE and a noun complement:

(g) It is a relief having received payment.

To have would also be possible here, if it was wished to make the verb action sound brief rather than ongoing.

In sentences like (f), a conjunction statement would replace to have… if the verb’s subject needed to be mentioned, e.g. if someone has smoked.

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2. Verb Object

ORDINARY GERUND USE: (h) Witnesses remembered seeing abuse.

Simple -ing gerunds like seeing are only sometimes possible in the object position. They may directly follow the main verb as above, or have a noun expression in between, e.g. remembered everyone seeing. It is the choice of main verb that determines the possibility of a gerund object. After many main verbs, to or that is needed instead (see 208. Verbs with an Object + Infinitive).

Of the verbs that allow an -ing object, again only some allow having…. Remembered above is one: having seen could follow it. The usability of having… as well as just -ing may be discoverable from the main verb’s meaning. Future-referring verbs like FORESEE and FACILITATE are unlikely to take having…, but past-referring ones like REMEMBER and DESCRIBE can. For some verb lists, see 232. Verbs with an Object + “-ing”.

Having… objects with their own subject just before them seem less likely again. Main verbs that allow them are likely to be the kind that typically have a static scene as their object, such as IMAGINE, PICTURE, SHOW or VISUALISE:

(i) One photograph shows a climber having almost reached the summit.

The distinction between participle and gerund use in such sentences may sometimes be obscured.

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3. Verb Complement

(j) The cause of the problem was digging too deep.

The ordinary gerund digging here is a “complement” because it is equated to cause, the subject of the sentence, by the link verb was. It could also be a complement equating to a verb object, for example in a sentence starting X describes the cause as… (see 220. Features of Complements, #1). However, it could not be the complement of any complement-taking verb: the kind that has only adjective complements, such as TURN (= become), is ruled out.

The complement use of ordinary -ing gerunds, as illustrated by digging, seems fairly common (see 71. Gerund and Participle Uses of “-ing”, #2). However, having… gerunds in this position (having dug above) are probably less common, as ordinary gerunds often seem able to do the same job. Sentence (j), where a having gerund does seem possible, took me some time to think of.

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4. Preposition Object

(k) Analytic ability is enhanced through learning a new language.

Ordinary -ing gerunds, like learning, are able to follow many but not all prepositions (see 70. Gerunds). Having… gerunds – again expressing a previously-completed rather than mostly-simultaneous action – seem similar. Having learned would be grammatical above.

A preposition that is perhaps more able than most to precede a having gerund is after (…after having learnt above).

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5. Noun Identifier

(l) The committee’s main task, (namely) developing traffic solutions, needs time.

In this structure, two consecutive noun expressions (underlined) represent the same thing (see 77. Apposition). Both kinds of gerund can form the first or second expression. However, having… gerunds seem less common, their main use perhaps being as the second expression after a situation noun:

(m) The state of many ancient manuscripts, (namely) having been copied from copies, makes them unreliable.

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6. Noun Pre-Modifier

(n) Shopping habits are valuable data.

Shopping here illustrates how ordinary gerunds can describe an immediately-following noun (for multiple examples, see 71. Gerund & Participle Uses of “-ing”). Having… gerunds, however, cannot do the same.