13. UNIT 32 MAY OR MIGHT FOR POSSIBILITY May and might are modal verbs and express possibility. May and might are followed by the base form of the verb. Use will or going to , not may or might, to ask yes/no questions about the future.
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18. UNIT 35 POSSESIVES PRONOUNS AND ADJECTIVES SUBJECT PRONOUNS OBJECT PRONOUN POSSESSIVE ADJECTIVES POSSESSIVE PRONOUN I Me My Mine He Him His His She Her Her Hers It It Its -- We Us Our Ours You You Your Yours They Them Their Their