done,tobe done,to have been done,to have done,having done,having been done的区别还有用法?救我……
问题描述：
done,tobe done,to have been done,to have done,having done,having been done的区别还有用法?救我……
RT,还有啥时候用to be done,啥时候用todo?如There is a lot of work to do.为什么不用to be done?With a lot of work to do,he went out to play.为什么不是to be done?
答
to do to be done 表示目的和将来 非谓语的动作几乎和谓语动作同时发生或将要发生to have done to have been done 表示非谓语的动作发生在谓语动作之前having done having been done表示进行和主动 而且非谓语的动作...能给几个例句吗？“having done having been done表示进行和主动而且非谓语的动作发生在谓语动作之前"既然是进行为什么又是之前呢？having been done怎么表主动？老师说having done之作状语，其他的有没有类似用法限制？对不好不好意思这几天比较忙，没及时帮助你，很抱歉！刚才我看了二楼的回答 ，解释还行，如有什么问题再留言