The document defines and provides examples of different types of indefinite pronouns:
Every refers to all members of a group and is used in affirmative sentences. Some refers to an unspecified amount or number of people, things, or places and is also used in affirmative sentences. Any refers to one person, thing, or place and is used in negative and interrogative sentences. No is used in affirmative sentences to give a negative meaning and refers to not any people, things, or places.