如何将被动语态改为,一般过去时、过去进行时、过去完成时、一般现在时、现在进行时、现在完成时、一般将来时、将来完成时,过去将来时,如：Tom mends his bike
问题描述：
如何将被动语态改为,一般过去时、过去进行时、过去完成时、一般现在时、现在进行时、现在完成时、一般将来时、将来完成时,过去将来时,如：Tom mends his bike
答
be动词+动词ing
答
the past simple:Tom mended his bike.
the past continuous: Tom was mending his bike.
past perfect: Tom had mended his bike.
present simple: Tom mends his bike.
present continuous: Tom is mending his bike.
present perfect: Tom has mended his bike.
the future simple: Tom will mend his bike.
the future perfect: tom will have mended his bike.
the past future: Tom would have mended his bike.
答
被动语态结构是be +过去分词,所以,各种时态的变化都是对 be 进行的,如：一般过去时:did变成：was done过去进行时: was/were doing----- was/were being done过去完成时: had done---- had been done一般现在时、do-...