Here are some examples of indefinite pronouns:
* Singular: anyone, someone, everyone, no one, nobody, something, anything, nothing, each, either, neither, one
* Plural: some, many, few, several, all, both, most, none
For example:
* Someone is knocking at the door. (nonspecific person)
* Everything is going to be alright. (nonspecific thing)
* Many have come to see the show. (nonspecific group of people)
Let me know if you have any other questions!