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infinitive

[ in-fin-i-tiv ]
/ ɪnˈfɪn ɪ tɪv /
Grammar
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noun
a verb form found in many languages that functions as a noun or is used with auxiliary verbs, and that names the action or state without specifying the subject, as French venir “to come,” Latin esse “to be,” fuisse “to have been.”
(in English) the simple or basic form of the verb, as come, take, eat, be, used after auxiliary verbs, as in I didn't come, He must be, or this simple form preceded by a function word, as to in I want to eat.
adjective
consisting of or containing an infinitive: an infinitive construction.Abbreviation: infin.

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Origin of infinitive

1425–75; late Middle English <Late Latin infīnītīvus indefinite, equivalent to in-in-3 + fīnītīvus definite; see finite, -ive

OTHER WORDS FROM infinitive

in·fin·i·tive·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use infinitive in a sentence

British Dictionary definitions for infinitive

infinitive
/ (ɪnˈfɪnɪtɪv) /

noun grammar
a form of the verb not inflected for grammatical categories such as tense and person and used without an overt subject. In English, the infinitive usually consists of the word to followed by the verb

Derived forms of infinitive

infinitival (ˌɪnfɪnɪˈtaɪvəl), adjectiveinfinitively or infinitivally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for infinitive

infinitive

The simple or dictionary form of a verb: walk, think, fly, exist. Often the word to marks a verb as an infinitive: “to walk,” “to think,” “to fly,” “to exist.”

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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