do possessive pronouns never have apostrophes

No.

Possessive pronouns never have apostrophes.

Possessive pronouns do not typically have apostrophes. Apostrophes are generally used in contractions or to show ownership or possession in nouns. However, possessive pronouns are already in the possessive form, so they do not require an additional apostrophe.

Here are the common possessive pronouns without any apostrophes:

- Mine
- Yours
- His
- Hers
- Its
- Ours
- Theirs

For example, instead of saying "That book is Sarah's," you would say "That book is hers." The possessive pronoun "hers" already indicates ownership without needing an apostrophe.