present simple (is/are+p.P) i write songs - songs are written by me
present contin(is,are being+p.P) -he is sending emails -emails are being sent by me.
past simple(was/were + p.P) -tom bought a car- a car was bought by tom
past contin (was,were being +p.P)- the police was arresting him -he was being arrested by the police
past perfect(had been +p) -tim had seen the accident - the accident had been seen by tim.
future simple-(will be + participle) - he will cook a pie - a pie will be coooked by him