Level: beginner
We use one (singular) and ones (plural):
- after an adjective:
See those two girls? Helen is the tall one and Jane is the short one.
Which is your car, the red one or the blue one?
My trousers are torn. I need some new ones.
- after the:
See those two girls? Helen is the one on the left.
Let's look at the photographs – the ones you took in Paris.
after which in questions:
You can borrow a book. Which one do you want?
Which ones are yours?
- one and ones 1
- one and ones 2
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Hello Lijo John,
'One' is counted as an indefinite pronoun, yes. The relevant wikipedia page has a useful table:
https://en.wikipedia.org/wiki/Indefinite_pronoun
Peter
The LearnEnglish Team
Hello Lijo John,
Thank you for the suggestion. We'll make a note of it for the next time we review the site organisation.
Peter
The LearnEnglish Team
Hello FirasAkkad,
That was a mistake! It should end in a question mark and I've now fixed it.
Thanks very much for taking the time to point this out to us.
All the best,
Kirk
The LearnEnglish Team