to have been doing 和 having been doing 有什么区别,重点是have 和having

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解决时间 2021-01-02 05:17

提问者网友：眉目添风霜
2021-01-01 22:51

to have been doing 和 having been doing 有什么区别,重点是have 和having
说没有这两个语法现象的请绕道

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五星知识达人网友：怀裏藏嬌
2021-01-01 23:30

前一个是即将做,还没做.而后一个是做过了的意思.这种语法现象适用于各种地方
再问：那having been doing 和 having been done呢？有什么区别，有点搞混，求举个例子
再答： having been done 是现在完成时的被动语态，having been doing 是现在完成进行时，表示动作从过去发生并且持续到了现在。例子：I have been doing my homework since yesterday.
I have been asked many questions by my friends.

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1楼网友：深街酒徒
2021-01-02 00:48

感谢回答

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