What is the definition for irregular verbs?

Answer 1

In contrast to regular verbs, irregular verbs are those verbs that fall outside the standard patterns of conjugation in the languages in which they occur. The idea of an irregular verb is important in second language acquisition, where the verb paradigms of a foreign language are learned systematically, and exceptions listed and carefully noted. Thus for example a school French textbook may have a section at the back listing the French irregular verbs in tables. Irregular verbs are often the most commonly used verbs in the language.

Answer 2

Irregular verbs are verbs that do not follow the regular pattern of conjugation in a given language. They do not form their past tense and past participle by adding -ed or -d to the base form of the verb. Instead, they have unique conjugations that must be learned individually.