There are two types: possessive pronouns and possessive determiners. We use possessive determiners before a noun. We use possessive pronouns in place of a noun: Is that [determiner] your scarf? It’s very similar to [pronoun] mine.

Possessive pronouns show that something belongs to someone. The possessive pronouns are my, our, your, his, her, its, and their. There’s also an “independent” form of each of these pronouns: mine, ours, yours, his, hers, its, and theirs. Possessive pronouns are never spelled with apostrophes.