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English definition of “have”

have

auxiliary verb [+ past participle]     strong /hæv/ weak /həv/ /əv/ (had, had) (also 've/'s)
A2 used with the past participle of other verbs to form the present perfect and past perfect : I've heard that story before. Diane's already gone. John hasn't phoned . I haven't visited London before. Have you seen Roz? Has she been invited ? They still hadn't had any news when I spoke to them yesterday .formal Had I known (= if I had known ) you were coming, I'd have booked a larger room . Grammar:HaveGrammar:Have: formsHave is an irregular verb. Its three forms are have, had, had. The present simple third person singular is has:Grammar:Have: usesWe use have as a main verb and an auxiliary verb.Grammar:Have: typical errorGrammar:Have as a main verbThe main verb have has lots of uses.Grammar:Have as an auxiliary verbHave is one of three auxiliary verbs in English: be, do and have. We use have before -ed forms to make the present perfect and past perfect.Grammar:Types of nounsA noun refers to a person, animal or thing. Some examples are:
(Definition of have auxiliary verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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