All English verbs (except to be) have five forms: base, past tense, past participle, present participle, and third-person singular. The way these forms are constructed (specifically past tense and past participle) depends on whether the verb is regular or irregular; regular verbs follow typical patterns, while irregular verbs do not.

Verb forms refer to the different ways in which a verb can be used to represent tense, number, gender, voice and mood. In English grammar, a verb is said to have five main forms named V1, V2, V3, V4, and V5.

A verb form is a way in which a verb is shaped or modified in order to suit the context that speaks about an action that is performed at a specific time. The five verb forms in English are root verb, third person singular present form of verb, present participle, simple past and past participle.

Main verbs in English have five different forms: the base form, also known as the infinitive, e.g. work, take; the past form, e.g. worked, took; the past participle or -ed form, e.g. worked, taken (in regular verbs this takes the same form as the past, but in irregular verbs it can be different, e.g. took, taken.);