Apostrophe Rules–A Quick Guide | Grammarly
https://www.grammarly.com/blog/apostrophe23.9.2022 · Personal pronouns, unlike regular nouns, do not use apostrophes to form possessives. Most writers don’t have trouble with the possessive pronouns my, mine, his, her, and our. It’s your, yours, hers, its, ours, their, and theirs, that …