Regular Verbs
Irregular Verbs
Transitive Verbs
Action Verbs
Intransitive Verbs
Auxiliary Verbs
Linking Verbs
Require a direct object to complete meaning
Form past tense by adding -ed
Change form in the past tense unpredictably
Help the main verb express tense or mood
Express physical or mental actions
Connect the subject to a subject complement
Do not require a direct object