pp. = past participle

tence active passive
Simple Present ①be② v. / v.-s am / are / is + v.[pp.]
Simple Feature will / be going to + do will be + v.[pp.]
Present Continuous am / are / is + v.-ing am / are / is + being + v.[pp.]
Simple Past ①was / were②v.-ed was / were + v.[pp.]
Present Perfect have / has + v.[pp.] have / has + been + v.[pp.]
Past Perfect had + v.[pp.] had been + v.[pp.]
Past Continuous was / were + v.-ing was / were + being + v.[pp.]
Modal Verbs Modal Verb + do ModalVerb + be + v.[pp.]

English Grammar Lessons