一般现在时,主:We believe him。被:He is believe by us。一般过去时,主:He bought his children some pen。被:Some pen were bought for his children by him。一般将来时,主:Everyone will know the truth soon 。被:The truth will be know by everyone。 现在进行时,主:Mary is making a doll。被:A doll is being made by mary。过去进行时,主:They were carrying the hurt player。被:The hurt player was being carried by them 。现在完成时,主:He has received the letter .被:The letter has been received by him.过去完成时, 主:They had built ten bridges。被:Ten bridges had been built by them、差了一个,有空补上,现在还没懂。不过比较少用。