When do you use an indefinite pronoun?

Answer 1

Indefinite pronouns are used in place of nouns for people, things, or amounts that are unknown or unnamed.

They are: all, another, any, anybody, anyone, anything, both, each, either, enough, everybody, everyone, everything, few, fewer, less, little, many, more, most, much, neither, nobody, no one, nothing, none, one, other, others, several, some, somebody, someone, something, such, and they (people in general).

Examples:

Everyone has left the building but a few are still waiting to be picked-up.

You may have some. There is more in the kitchen.

Someone should do somethingabout this mess.

Answer 2

Indefinite pronouns are used to refer to nonspecific people or things. They are used when the specific person or thing being referred to is not known or important. Examples of indefinite pronouns include "someone," "anything," "everyone," and "no one."