英语中have been doing sth和have done 的区别?

英语中have been doing sth和have done 的区别? I have been doing sth.和I have done sth.有何区别? have been doing have done 的用法和区别 have been doing ,have done和have doing区别 英语--have sb to do sth,have sth done,have doing的区别! have sth doing与have sth done的区别 have sth done 与have sth doing的区别? having been done have been done have been doing 区别?就是have 和h have been done 和 have been doing have been doing 和have done 还有had done三者的区别,用法 has been doing have been done区别 have done 与have been doing的区别?