Passive Voice S + V1 + O Active : (a) Dian reads a book Form of passive : be + past participle S + To be + V3 Passive : (b) A book is read by Dian In the passive, the object of verb becomes the subject of the passive verb : “a book” in (a) becomes the subject of the passive verb in (b). (a) and (b) have the same meaning. TENSES ACTIVE PASSIVE simple present Putri sings a song A song is sung by Putri present progessive Putri is singing a song A song is being sung by Putri present perfect Putri has sung a song A song has been sung by Putri simple past Putri sang a song A song was sung by Putri past progessive Putri was singing a song A song was being sung by Putri past perfect Putri had sung a song A song had been sung by Putri simple future Putri will sing a song A song will be sung by Putri be going to Putri is going to sing a