Talk:that one

only plural these/those ones and BrE?

One/ones is used to avoid repeating a countable noun, but there are some times when you should not use it, especially in formal speech or writing: After a possessive (my, your, Mary’s, etc.), some, any, both or a number, unless it is used with an adjective: ‘Did you get any postcards?’ ‘Yes, I bought four nice ones.’ 
It can be left out after superlatives, this, that, these, those, either, neither, another, which, etc: ‘Here are the designs. Which (one) do you prefer?’ ‘I think that (one) looks the most original.’ 
These ones and those ones are not used in North American English, and are unusual in British English: It is never used to replace uncountable nouns and is unusual with abstract countable nouns: The Scottish legal system is not the same as the English system 
https://www.oxfordlearnersdictionaries.com/definition/english/one_2

--Backinstadiums (talk) 20:06, 21 November 2020 (UTC)