Uses of Irregular verbs in English Grammar. A irregular verb that don’t take on the regular –d, -ed, or -ied spelling patterns of the past simple V2 or past participle V3.
uses of irregular verbs, irregular verbs list, list of irregular verbs, irregular verbs as strong verbs, verbs with different pattern https://www.englishmirror.com/english-grammar/irregular-verbs.html