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These three words of similar meaning differ in numerous ways in their grammar and meaning.
THE DIFFICULTY OF DISTINGUISHING THESE WORDS
All, each and every can give trouble because there are subtle differences between them of both grammar and meaning (rather like the differences shown by 98. “Very”, “Much” and “Very Much”). Many of these differences are given attention in English Language coursebooks, but a detailed comparison of the three words together seems rare.
It is this kind of comparison that I am attempting in the present post. Consideration is given first to usage with a following noun and then to usage without. A number of specialised uses are also presented. One other Guinlist post dealing with the same kind of meaning is 308. Complexities of “Whole”.
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USAGE WITH A FOLLOWING NOUN
The principal ways in which the three words can combine with a following noun may be illustrated as follows:
(a) All sentences need a subject.
(b) All (of) the sentences need a subject.
(c) Each sentence needs a subject.
(d) Each (one) of the sentences needs a subject.
(e) Every sentence needs a subject.
(f) Every one of the sentences needs a subject.
The following differences are illustrated by these examples:
1. The three words equally express the meaning of “100%”. However, each highlights the individuals that make it up rather than the whole group.
2. Each and every accompany only countable nouns. All is also shown above with a countable noun, but elsewhere its noun might be uncountable (e.g. all suffering).
3. Each and every require any noun placed directly after them to be singular, but all sometimes has a singular one (all suffering, all day, all the world), and sometimes a plural one (all people).
4. To place each/every before a noun with the, you must add of in between and make the noun plural (see 160. Uses of “of”, #5). However, all allows both all the and all of the, and normal singular/plural usage.
5. Before of the, every must have one, all cannot have it, and each allows a choice. The reason for the need with every is that it is always an adjective (needing a noun-like word to describe). Each, on the other hand, allows a choice because it can be either an adjective (needing a noun-like partner) or a pronoun (needing to be alone). Including one after each is emphatic, giving more prominence to the individuality of the group members. For more on flexible pronouns like each, see 28. Pronoun Errors.
6. A noun without the (or similar) after all/each/every must also be without of (see 133. Confusions of Similar Structures 1, #1). It has to be singular after each and every (each/every sentence), but may be singular or plural after all depending on its type (all suffering, all sentences). For information about when to drop the, see 110. Nouns without “the” or “a”.
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Additional points, not illustrated by the examples above, are:
7. Each is less common than the other two words, but is the only possibility when the partner noun belongs to a group of only two members, as in this example:
(g) Each side of the brain has specialized functions.
If you wished to say sides here instead of side, you would have to replace each with both, not all. It is quite a common error to use all when both is required.
8. The three words are not commonly used before the words person, people and thing(s), with or without the. Instead, the pronouns everyone and everything are usually preferred (e.g. Everything perishes rather than *Each/Every thing perishes or *All things perish).
9. The three words easily combine with a pronoun by means of of (all of us, each of them, every one of you). All and each can also follow the pronoun without of (e.g. we all, them each).
10. When describing a noun that is a subject of BE or a multi-word verb, any of the expressions can precede it, but each and all can alternatively follow it, either with the first word of the verb moved before them (e.g. The sentences can each/all have…) or without it (e.g. The sentences each/all can have…). Each and all are adjective-like determiners when used without of and pronouns with it.
11. After of an alternative to the is a similarly definite word like the “demonstrative” adjectives” this/that and “possessive” adjectives its, their etc. (each of their sentences…). The entire combination of the (etc.) + plural noun can be replaced by plural pronouns like them.
12. Every and all can be used after almost and practically, but each cannot (Practically all sentences/every sentence …).
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USAGE WITHOUT A FOLLOWING NOUN
Points 1, 7 and 11 above also apply when there is no following noun. In addition, there is an equivalent to points 2/3: each and every imply singular countable nouns, while all can imply plural and uncountable nouns too. Consider this:
(h) The figure contains six triangles. Each is equilateral.
The underlined verb is singular because each always stands for a singular countable noun (here triangle). On the other hand, if all replaced each, the verb would need to be plural (are) because all would represent the plural triangles.
To use every in (h) instead of each, it would be necessary to add one. This is again due to the exclusively adjective nature of every. If the reference is to people, one must be joined onto every to make a single word:
(i) The building can accommodate six residents. Everyone has their own bathroom.
For the use of every one, plus other pairs that make a similar contrast, see 26. One Word or Two?
A special use of each by itself occurs in the object position after a verb: alongside the word other, it indicates that two people or things are each doing the same thing to the other, as in this example:
(j) Large apes like to groom each other.
For more on such sentences, see 143. Subtleties of “-self” Words.
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SPECIALISED USES
Sentence (g) above illustrates a situation where only only one of the three words (each) is possible. There are a number of other meanings that similarly restrict choice.
1. Before “that…”
All can go directly before that… (= “which”), sometimes to mean everything (…described all that they saw), sometimes the only thing (All that I know is…). Care is needed not to say *all what instead (see 231. Confusions of Similar Structures 3, #1).
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2. With Time Nouns
Singular time nouns like minute, day and year can combine directly with each and every to make two different kinds of phrase: noun-like and adverb-like. The first kind act in sentences in typical noun positions like “subject” and “object”:
(k) Every/Each second counts.
(l) Take each/every day as it comes.
The adverb-like uses are unusual in lacking a starting preposition (similarly to time phrases with last… and next…). They are recognizable as adverbs because they occupy typical adverb positions and express the typical adverb meaning of frequency (see 120. Six Things to Know about Adverbs, #1):
(m) Exams are held each/every year.
Note that every can also make the one-word adjective everyday (see 26. One Word or Two?).
All too can go directly before a singular time noun, but only to make adverb phrases (saying how long):
(n) The consequences were visible all day.
A single long day is being referred to here, rather than the repeated days that each or every would signify (see 258. Saying How Long Something Lasts, #2).
To make all and a singular time noun usable in noun positions, you sometimes have to add of a(n) or of the, and sometimes just of. The former are needed before time nouns that normally follow a(n) or the, such as day, night or week:
(o) Preparation can occupy all of a day.
Of alone is necessary with time nouns in a noun position if they are the kind that are not generally used with the or a(n), such as today, Tuesday, July and 2019 (e.g. all of today).
All of and all of the can make not just noun expressions like all of today in (o), but also adverb ones like all day in (n). This means adding the or a(n) is always right, but dropping them can be wrong.
The use of all with a plural time noun, with or without of, is different from that with singular time nouns, as it tends to be just noun-like:
(p) All years are the same.
Finally, a notable contrast is between each/every time and all (of) the time. Time in the former is countable and means “occasion” (see 236. Tricky Word Contrasts 9, #3), while in the latter is uncountable and means “period”. For more on this kind of meaning difference, see 43. Substance Locations.
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3. With Numbers
All, each and every can go with a number + plural noun, e.g. …three spaces, but different meanings result. All indicates that the number is a total – not part of a larger group – and that no exceptions exist within this total, e.g.:
(q) All three spaces contained a car.
This means a total of three spaces existed, and none was empty.
Every and each, on the other hand, indicate that the mentioned number is repeated at regular intervals. Replacing all in (q), for example, they would show that there were numerous groups of three spaces, and all of these groups had one of their spaces occupied by a car.
In (q), the usage is noun-like. Adverb usage is also possible, especially with time nouns. All/Each/Every three years, for example, could indicate frequency.
PRACTICE EXERCISE: “All”, “Each” AND “Every”
Readers wishing to strengthen understanding and retention of the above points are invited to try the following exercise. You have to decide which one(s) of the three words are possible in each space (answers below).
1. .….. year brings different weather.
2. ….. tyre on a motor vehicle must be at the correct pressure. ….. need to be checked before a long drive.
3. Practically ….. human being responds positively to kindness.
4. The conference will run from Wednesday to Friday. ….. three days will begin with coffee.
5. Parents will show interest in ….. thing that their child learns.
6. There were numerous balls of different colours. Participants were asked to identify ….. of the green ones.
7. The USA and Canada are …. traversed by the Rocky Mountains.
8. In 2016, the weather was unusual ….. year.
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Answers
1. Each/every (+ singular year); 2. Each/every (+ singular tyre); all (+ plural need). 3. every (cf. practically + singular being); 4. all (only one group of 3); 5. each (not every because that would make one word, not two); 6. all/each (not every because one is absent). 7. each (not all because only two countries are involved); 8. all (only one year was involved).