The Classification of Words

§ 168. These are the group-pronouns — each other and one another. They serve to express mutuality, as in They helped each other (one a n o't h e r).
It is traditionally maintained that each other implies only two and one another more than two, but this rule is often ignored, one another and each other becoming interchange­able.
We (two p,ersons) ran across one another one morning near the Menin Gate — the place they called Hell Fire Corner. (Oxenham).
§ 169. The reciprocal pronouns share the noun case system.
Common case Possessive case
each other — each other's one another — one another's
§ 170. Reciprocal pronouns are used anaphorically, usu­ally with reference to the subject of the sentence (always plural). This accounts for the fact that I hey do not function as subjects. They mostly occur as objects (both preposition-less and prepositional) and attributes.
Resident hospital staff can get on each о t h e r's nerves. (Randall).
She was the offspring of two people who really lived for each other. (Randall).
110
Indefinite Pronouns
§ 171. In grammatical tradition the class of indefinite pronouns is the most variegated of all '.- -It is said to include some, any, every, no (and their compounds), all, each, either, much, many, lew, little, etc., words of different lexical and grammatical nature.
We agree with V. N. Zhigadlo, 1. P. Ivanova and L. L. lo-fik ² that only the pronouns some, any and their compounds really indicate things, properties, etc. in an indefinite way. Therefore only these pronouns will be regarded here as indef­inite.
§ 172. Indefinite pronouns can be pro-nouns (some^ any, somebody, somebody's, anybody, anybody's, someone, some­one's, something, anything); pro-adjectives (some, any); pro-numerals (some, any); pro-adverbs (somewhere, somehow, anywhere, anyhow).
E.g. Some are wise and some are otherwise (pro­nouns).
/ read it in some book (pro-adjective). It was some years ago (pro-numeral).
§ 173. Like some other groups of pronouns the indefinite pronouns regularly occur in certain types of sentences. Some and its compounds usually indicating an indefinite quantity or quality as available ³ are mostly used in affirmative sen­tences (in about 75—77 per cent of all cases), whereas any and its compounds, without the connotation of 'availability', are generally used (in about 68—72 per cent of all cases) in interrogative and negative sentences⁴, or in conditional clauses.
E. g. There were a couple of periodicals and some letters
that had come by the second post. (Amis).
If she hasn't any sense of humour, it won't work. (Black) There mustn't be a n у American casualties, must there?
(Greene)
¹ See, for instance, M. Ganshina and N. Vasilevskaya, op. cit.,
p. 88.
² Op. cit., p. 63.
³ А. С. Б a p x у д а р о в, Д. А. Ш т е л и н г, op. cit., p. 97.
⁴ It also occurs with negative words such as without or hardly.
He has hardly any time. I had it without a n.y difficulty.
'ill
We must bear in mind, however, that some (and its com­pounds) occurs in interrogative sentences (very rarely in negative ones) to which an affirmative answer is expected or invited ' (that is, when the speaker proceeds from the availa­bility of some object, property, etc.)- May f have s о т е paper?
Any (and its compounds) may be used in affirmative sen­tences in the meaning of "every", "no matter which": You can buy stamps at a n у post-office. (Hornby).