II. INDEFINITE PRONOUNS

135. The indefinite pronouns point out objects less clearly or definitely than demonstratives do.

Examples:

136. Most indefinites may be either pronouns or adjectives. But none is always a substantive in modern use, and every is always an adjective.

137. None may be either singular or plural. When it means distinctly not one, it is singular. In many instances either construction is permissible.

138. Each other and one another are regarded as compound pronouns. They designate related persons or things.