The plural form for the pronoun 'it' is 'they' for the subject and 'them' for the object of a sentence or clause; fro example: There is a book on my desk, it is a math book. There are books on my...
This depends on if "it" is the subject or object. If "it" is the subject of the sentence, the plural form is "they." Examples:Singular: It didn't move.Plural: They didn't move. If "it" is the object...