Intransitive verb
| Transitivity and valency |
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| Transitivity |
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Intransitive verb Transitive verb Ambitransitive verb |
| Valency |
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Impersonal (Avalent) Intransitive verb (Monovalent) Monotransitive (Divalent) Ditransitive verb (Trivalent) Tritransitive verb (Quadrivalent) |
| Voice and constructions |
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Valence increasing Valence decreasing Reflexive pronoun Reflexive verb Reciprocal construction Reciprocal pronoun |
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In grammar, an intransitive verb is a verb, aside from an auxiliary verb, whose context does not entail a transitive object. That lack of an object distinguishes intransitive verbs from transitive verbs, which entail one or more objects. Additionally, intransitive verbs are typically considered within a class apart from modal verbs and defective verbs.