have/had been down怎么看是表示被动还是延续?
have/had been down怎么看是表示被动还是延续?
had been doing是主动还是被动
我想问一下have been received是表示被动吗
having been done 是主动还是被动,为什么have 出现having ing形式?分词是表示主动吧?看看这
having been done作状语是 表示被动,完成,还是被动完成都有
to have been pulled down,不定式的被动完成时态和having been pulled down
have been doing,had been doing,will have been down是什么
have been down 和 have down 区别是?
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结构是have been +过去分词还是have been+doing
Have been doing 的被动语态是?
have been married 是被动语态吗