Page 404 - Practical English Usage 3ed - Michael Swan, Oxford

5 one/you as subject. object etc
One can be a subject or object; there is a possessive one's and a reflexive pronoun oneself.
He talks to one like a teacher. One's family can be very difficult.
One should always give oneself plenty o f time to pack. YouJyourlyourself can be used in similar ways.
6 they
They has a rather different, less general kind of meaning than one and you. It usually refers to a particular but rather vague group (for example the neighbours, the people around, the authorities).
They don't like strangers round here. They're going to widen the road soon. I bet they put taxes up next year.
Note also the common expression they say (= people say).
They say her husband's been seeing that Mrs Hastings again. (NOT ene-
~ ...) 397 one of ...
After one ofwe normally use a plural form. one ofour cats (NOT BIte ofol:tl' eat)
Occasionally one ofis used with a singular noun referring to a group. Why don't you ask one o f the crew?
A following verb is normally singular.
One ofour cats has disappeared. (NOT One O}'OI:tF etlts MtJe tiisfJppeareti.)
After one of, a noun phrase must have a determiner (e.g. the, my, those). one ofthelmylthose horses (BUT NOT (me ,,/htJrses)
Ofcannot be dropped.
one of my friends (NOT one myfrienti OR one myjHentls)
For sentences like She's one o f tire ollly women who have/has climbed Everest, see 529.
398 only: focusing adverb
Only can be used as a 'focusing adverb' (see 24.6). It can refer to different parts of a sentence.
1 referring to the subject
Only normally comes before a subject that it refers to. Only you could do a thing like that.
Only my mother really understands me.
2 referring to other parts of a sentence
When only refers to another part of a sentence, it often goes in 'mid-position' with the verb (see 24 for details).
She only reads biographies. She is only on duty on Tuesdays. I only like swimming in the sea. I've only been to India once. She was only talking like that because she was nervous.
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