Pronoun – Verb Agreement
Indefinite pronouns are always singular: another, each, every, either, neither, and one and the compound pronouns made with any-, every-, some-, and no-, such as anybody, everyone, someone, nobody, nothing.
The following pronouns are always plural and take plural verbs: both, few, many, others, and several.
The following pronouns are either singular or plural depending on usage: all, none, any, some, more, and most.
Relative pronouns -- who, whom, which, whoever, whomever, and that -- are singular if their antecedent is singular; plural, if the antecedent is plural.
