Page 402 - Practical English Usage 3ed - Michael Swan, Oxford

3 ones
One has a plural ones.
I'd like to try on those shoes. - Which ones? - The ones in the window. Green apples often taste better than red ones.
What sort ofsweets do you like? - Ones with chocolate inside.
4 uncountable nouns
We do not use one{$) for uncountable nouns. Compare:
Ifyou haven't got a fresh chicken I'll take a frozen one.
Ifyou haven't gotfresh cream I'll take tinned (cream). (NOT .•• ftflnetiene.)
5 which (one), this (one) etc
We can leave out one(s) immediately after which, this, that, another, either, neither and superlatives.
Which (one) would you like? - This (one) looks the nicest. Let's have another (one). Either (one) will suit me.
I think my dog's the fastest (one).
But we cannot leave out one(s) if there is an adjective. This blue one looks the nicest. (NOT T-.'tis blfM! leeks . ..)
We nearly always leave out ones after these and those.
I don't think much ofthese. (More natural than ... these ones.)
6 not used after my etc, some, several, a few, both or a number
We do not use one(s) immediately after my, your etc, some, several, (a) few, both or a number.
Take your coat and pass me mine. (NOT ••• pttss 'fie my erie.)
Are there any grapes? - Yes, I bought some today. (NOT ••• : bettght seme
erie! tetltity.)
I'll take both. (NOT ••• beth enes.) She bought six. (NOT ••• six 811eS.)
But one(s) is used if there is an adjective.
I'll wear my old one. (NOT ••• myeki:)
I bought some sweet ones today. (NOT I btmght SBtne sweet tBtlay.)
Has the cat had her kittens? - Yes, she's hadfour white ones. (NOT •••-{mtr
ftihite.)
7 that of
One(s) is not normally used after a noun with possessive's. Instead, we can either just drop one(s), or use a structure with that/those of(more formal).
A grandparent's job is easier than a parent's. (NOT ••• thtttz a parent's 8ne.) Agrandparent'sjobiseasierthanthatofaparent.(NOT ••• thttrlthe8r1et1ftt
ptlrent.) .
Trollope's novels are more entertaining than those ofDickens. (NOT ••• fhan Diekens' 8nes I the 81tes t1!Didcelu.)
8 noun modifiers
One(s) is not generally used after noun modifiers.
Do you need coffee cups or teo, cups? (NOT ••• 8Y tea 8Iles.)
one: substitute word 395
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