关于having been done这个语法是不是非谓语?如果主句与从句主语相同,是不是省略从句主语 可以由have benn down变成having been done 或者独立主格也可以这么变?还有哪种情况可以用?This done,we went home.=After this had been done,we went home 这句话 had been 怎么被省略了？
问题描述：
关于having been done这个语法
是不是非谓语?
如果主句与从句主语相同,是不是省略从句主语 可以由have benn down变成having been done 或者独立主格也可以这么变?还有哪种情况可以用?
This done,we went home.=After this had been done,we went home
这句话 had been 怎么被省略了？
答
having been done 是过去分词的完成时态,属于非谓语动词.分词短语的逻辑主语是否省略,则要看分词短语的逻辑主语是否和主句的主语一致.如果一致,则分词短语的逻辑主语可以省略；如果不一致,则分词短语的逻辑主语要表...