14. Plural Indefinite Pronouns

The following pronouns are always plural. A pronoun that is used in place of them must also be plural.

many both few several others

Note that above many a one was included in a list of pronouns that are always singular, whereas many is included in this plural list. When singular expressions, such as a man, a one, a person , etc., are added to many , the pronoun is singular, not plural.

Several found their cars unlocked. (Several --- plural)
Only a few would give up their freedom. (few -- plural)
Others found their friends in the crowd. (Others -- plural)