irregular verb

Cultural  

1. A verb in which the past tense is not formed by adding the usual -ed ending. Examples of irregular verbs are sing (past tense sang); feel (felt); and go (went). (Compare regular verb.)

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Example Sentences

But other people’s mental grammars see “greenlight” as a form of the verb “to light”, an existing irregular verb with the past tense “lit”; hence “greenlit”.

From Economist • Sep. 22, 2016

Why pay so much attention to the lowly irregular verb?

From Time Magazine Archive

Bon mot: "In all languages the verb 'to disarm' seems to be an irregular verb."

From Time Magazine Archive

The verb substantive is generally dealt with as an irregular verb.

From A Handbook of the English Language by Latham, R. G. (Robert Gordon)

The irregular verb sum is so important for the conjugation of all other verbs that its inflection is given at the outset.

From New Latin Grammar by Bennett, Charles E. (Charles Edwin)