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.

Verbs describe actions, states, and events. Rita climbed Mt. Everest last year. Tumkin likes to travel. It was cold when we visited Greenland in December. Verbs may be lexical (full) or auxiliary (supporting). I should have known better. known = lexical verb; have = primary auxiliary; should = modal auxiliary

There are six basic forms of verbs. These forms are as follows: Base form: Children play in the field. Infinitive: Tell them not to play Past tense: They played football yesterday. Past participle: I have eaten a burger. Present participle: I saw them playing with him today. Gerund: Swimming is the best exercise.