UC知道he was told by a smiling policeman that his bicycle had been found 中的had been found用了什么语法？
来源：百度知道 编辑：UC知道 时间：2024/06/03 18:19:29
如果是过去完成时 为什么要加been
过去完成时..因为发生在警察告诉他前(警察告诉他was told 这里是过去时)..所以是过去的过去 ..用过去完成时..自行车是被找到的..是被动态..所以要加Been咯.
一位警察微笑着告诉他，他的自行车已经找到了。
been 这里表示被动，自行车被找到了，过去时中用been
been 是被动语态， 指自行车已经被找到了， 不是had been 那个用法
因为这是个被动句，所以要加个BE动词。又因为这是过去完成时，所以BE动词要变been。
过去完成时的被动语态.had been done
过去完成时的被动语态
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