had been 在这里的成分是?不会是完成时的被动语态吧?
had been 在这里的成分是?不会是完成时的被动语态吧?
have/has been done 是现在完成的被动语态
1.They have been married for three years.是完成时的被动语态吗?
Have been doing 的被动语态是?
have been done 什么东西?have been doing是现在完成进行时的被动语态嘛?
现在完成进行时的被动语态结构是have been +过去分词还是have been+doing
完成时被动语态为什么是have been done
been一定在被动语态的完成时用么?
下面句子为什么用的是被动语态was finished而不是过去完成时had been finished
被动语态的构成讲一下,并举几个例子,像I have had luch.变为被动语态是Luch has been had
现在完成进行时的被动语态是怎样的?
英语被动语态的问题1 thousands of buses had to be provided 这句话是被动语态吗,在