after having done与after doing 区别 新概念英语2第20课中说after having done 是因为after后的宾语动名词表示动作发生在谓语动词之后~但不是只要在after后的动名词都发生在谓语动词后吗?

after doing 与after having done的区别? 用after having done造句 having done 与doing 区别 having done 、done、 being done、 having being done 的区别与详细用法 having done 与done在非谓语动词中区别 to have done 与having done 有什么区别 having done 与done作后置定语时的区别 after having done与after doing 区别 新概念英语2第20课中说after having done 是因为after后的宾语动名词表示动作发生在谓语动词之后~但不是只要在after后的动名词都发生在谓语动词后吗? not having done 还是having not done? never having done还是having never done have been done 与 having been done 与have been doing与having been doing有什么区别 / their homework,the children went for a walk.a:having done ; b；after they have done 为什么不能用B regret doing与regret having done有什么区别呢? remember doing与remember having done有什么区别? having been done与done的区别是什么为什么有时候having been可以省略?帮忙举几个例子! having done的用法 请问过去分词done与现在分词having been done的区别是? 英语中的动名词 having done 与being done分别都在什么地方用.最好举例子