No, there is a group of plural use indefinite pronouns such as:
See the link below for a helpful chart of singular, plural, and dual use indefinite pronouns.
The singular subjective personal pronouns are: I, you, he, she, it.
The singular possessive pronouns are mine, yours, his, hers, and its. The singular possessive adjectives are my, your, his, her, and its.
The singular personal pronouns are: I, he, she, it, me, him, her and you (which is both singular and plural).The singular demonstrative pronouns are: this and thatThe singular possessive pronouns are: mine, his, hers, its, and yours (which is both singular and plural).The singular possessive adjectives are: my, his, her, its, and your (which is both singular and plural).The singular reflexive pronouns are: myself, himself, herself, itself, and yourself.The singular reciprocal pronouns are: each other, one another.The singular indefinite pronouns are: another, anybody, anyone, anything, either, enough, everybody, everyone, everything, less, little, much, neither, nobody, no one, nothing, one, somebody, someone, something.The indefinite pronouns that can be singular or plural are: all, any, more, most, none, some, such.
Indefinite pronouns can be singular, plural, or function as both singular and plural.The singular indefinite pronouns are:anotheranybody, anyone, anythingeacheither, neitherenougheverybody, everyone, everythinglesslittlemuchnobody, no one, nothingoneothersomebody, someone, somethingyou (as a word for any general person)The plural indefinite pronouns are:bothfew, fewermanyothersseveralthey (as a word for people in general)The indefinite pronouns that can be singular or plural are:allanymoremostnonesomesuch (as a word for the type already mentioned)
The singular objective pronouns are me, you, him, her, and it. The plural objective pronouns are us, you, and them.
The singular subject personal pronouns are: I, you, he, she, it. The plural subject personal pronouns are: we, you, they.
The third person, singular, nominative pronouns are: she, he, it.
Three singular subject pronouns are I, he, she. Note, the pronoun you can be singular or plural and subject or object.
I, he, she, it, this and that are singular.
The third person, singular, nominative pronouns are: she, he, it.
The singular demonstrative pronouns are: this and that.The plural demonstrative pronouns are: these and those.
The singular demonstrative pronouns are this and that.The plural demonstrative pronouns are these and those.