have you put your trousers in the washing machine 不是动词的疑问句是用do does当助动词的么请问
问题描述：
have you put your trousers in the washing machine 不是动词的疑问句是用do does当助动词的么请问
答
Answer :还原陈述句如下:You have put your trousers in the washing machine .这里 put 是过去分词,它与助动词"have"构成现在完成时.你的困惑应该在于未知"put"的原形,过去式,过去分词三种形式同形都用"put"来表示I...