2 Principal Parts All verbs have 4 principal parts: PresentPresent ParticiplePastPast ParticipleVerbs are either regular or irregular based on how they form past and past participle.Regular verbs add –d or –ed to the present to form past and past participles.
3 Present Participle Ends with –ing I am watching this movie.Works with a form of the verb be (am, is, are,was, were)Works to make a verb phrase
4 Past Participle Ends in –d or –ed. Works with a helping verb. I have stopped here frequently.Works with a helping verb.Works with a form of the verb have (has, have, had).Works to make a verb phrase.
5 Spelling ChangesNote that sometimes while forming participles, the spelling of the verb may change.Marry marrying married
6 Irregular VerbsForm the past tense and past participle in unpredictable waysUSE THE CHART OR YOUR BRAIN!