having done的用法

having done的用法 having been done的用法 having done 、done、 being done、 having being done 的区别与详细用法 to be done 和having been done的用法 having been done 的用法我知道having been done 和having done 不能做定语 为什么 帮我具体讲下having done 的用法 have done与having done 在用法上有什么具体的区别,如何使用 having been done 与 have been done 的区别和用法?求大神帮助 having been done和done的区别having been done和done都指过去发生,且有被动含义,在用法上到底有没有什么区别? having done 用法?HAVING DONE.,HE.这种的就概括成好理解的话就行,不要长篇大论 regret的用法有regret to have done吗,有的话,和regret having done有什么区别 关于非谓语动词的用法having done 和v-ed的区别是什么? having done的句子是什么时态的,having done 咋用~ regret 的用法regret doing sth 是不是等于 regret having done sth? not having done 和 having not done 的区别 having been done和having done的区别rt 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 ou to have done,to be done,to have been done,having done在用法上有什么区别?