What is an indefinite pronoun?
An indefinite pronoun takes the place of a noun(s) for people, things, or amounts that are unknown or unnamed.
The indefinite pronouns 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 (as a word for people in general).
You may have some , there is more in the kitchen.
I'll just have a little, thank you.
Everyone will have a chance to speak.
Please be patient while others are speaking.
They say that he's a crook.
Where is the evidence? There is none.
Many of the indefinite pronouns also function as other parts of speech; for example:
You may have some cake. (here the word 'some' is an adjective)
You may have either cake or pie. (here the word 'either' is a conjunction)