The string of pronouns for the singular first person I-me-my-mine was joined by its plural counterpart we-us-our-ours.Is this getting hard to follow? Not to worry. The tables below will help (keep reading).
The singular second person you-you-your-yours gained its plural you-you-your-yours (which turned out to be identical, but only if one ignores the southern y’all-y’all-y’all’s-y’alls or the northern youse-youse-youse’s-youses).
And the singular third person he-she-it/him-her-it/his-his,her-hers,its-its received its plural they-them-their-theirs.