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English definition of “infinitive”

infinitive

noun [C] uk   /ɪnˈfɪn.ɪ.tɪv/ us    /-ə.t̬ɪv/ specialized
B1 the basic form of a verb that usually follows "to": In the sentences "I had to go" and "I must go", "go" is an infinitive. "Go" is the infinitive form.Verb forms, tenses and types of verbs
(Definition of infinitive from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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