Final answer:
The plural indefinite pronouns are both, few, and anyone.
Step-by-step explanation:
The plural indefinite pronouns are both, few, and anyone. These pronouns are used to refer to an unspecified number or amount of people or things. For example, 'Both of them are talented musicians' or 'Few people believed in his abilities.' The pronoun 'anyone' can be used to refer to any person or people in a general sense, for example, 'Anyone can join the club.'
Learn more about plural indefinite pronouns