Pronoun: One and Ones

Use one/ones to avoid repeating a noun.

Examples

• I like the red one.
• Which ones do you want?

Key rules

• Use one (singular) and ones (plural) instead of repeating a noun
• Use them after an adjective: the red one, the small ones
• Do not use one for uncountable nouns
• After this, that, which and another it is common: Which one?

Common mistakes

• I like the red → I like the red one
• I prefer a big one house → I prefer a big house