Meaning of “auxiliary verb” in the English Dictionary


"auxiliary verb" in American English

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auxiliary verbnoun [ C ]

us /ɔɡˈzɪl·jə·ri ˈvɜrb/

grammar a verb that gives grammatical information that is not given by the main verb of a sentence:

"Has" is an auxiliary verb in the sentence "She has finished her book."

(Definition of “auxiliary verb” from the Cambridge Academic Content Dictionary © Cambridge University Press)