被动语态:be+done 不同时态be要变化 一般现在时的被动语态:am /is /are +done 一般过去时的被动语态:was /were +done. 一般将来时的被动语态:will be +done / be going to be +done 现在完成时的被动语态:have/has been +done 现在进行时的被动语态:is /am /are being +done
是的,be动词根据具体时态变化。 一般时:am/is/are done 过去时:was/were done 一般将来:will be done 现在完成:have/has been done 现在进行:am/is/are being donr 过去进行:was/were being done 过去完成:had been done 过去将来:would be done