I'm sorry ( ) you working so long.(keep)我个人认为是to have kept,⑴I’sorry to do⑵so long 说明已经发生用现在完成时,综合起来为动词不定式的完成时态,只是不确定,希望能指出对错!

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I'm sorry ( ) you working so long.(keep)我个人认为是to have kept,⑴I’sorry to do⑵so long 说明已经发生用现在完成时,综合起来为动词不定式的完成时态,只是不确定,希望能指出对错!

I'm sorry ( ) you working so long.(keep)我个人认为是to have kept,⑴I’sorry to do⑵so long 说明已经发生用现在完成时,综合起来为动词不定式的完成时态,只是不确定,希望能指出对错!
I'm sorry ( ) you working so long.(keep)
我个人认为是to have kept,⑴I’sorry to do⑵so long 说明已经发生用现在完成时,综合起来为动词不定式的完成时态,只是不确定,希望能指出对错!

I'm sorry ( ) you working so long.(keep)我个人认为是to have kept,⑴I’sorry to do⑵so long 说明已经发生用现在完成时,综合起来为动词不定式的完成时态,只是不确定,希望能指出对错!
to keep

having kept

to keep

很抱歉让你一直工作了这么长时间

I'm sorry to have kept you working so long.你的理解是对的。这里用动词不定式完成式表示动作发生在谓语动词之前。用to keep是错的,因为动词不定式一般式所表示的动作或状态与谓语动词同时或落后于谓语动词,用在这里这里显然不合适;这里用having kept也不合适。
不定式一般有四种时态:一般式,进行式,完成式,完成进行式。
①一般式一般式...

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I'm sorry to have kept you working so long.你的理解是对的。这里用动词不定式完成式表示动作发生在谓语动词之前。用to keep是错的,因为动词不定式一般式所表示的动作或状态与谓语动词同时或落后于谓语动词,用在这里这里显然不合适;这里用having kept也不合适。
不定式一般有四种时态:一般式,进行式,完成式,完成进行式。
①一般式一般式所表示的动作或状态与谓语动词同时或落后于谓语动词,有主动和被动两种语态,主动结构为to do,被动结构为to be done.
eg:I'm glad to meet you.(与谓语动词同时,主动语态)
There is noyhing to be done. (落后于谓语动词,被动语态)
②进行式表示动作正在进行,与谓语动词同时发生,一般只有主动形式,结构为to be doing.
eg:It's frightening to be cycling to work in a sandstorm.
③完成式表示动作发生在谓语动词之前,有主动和被动两种语态,主动结构为to have done, 被动结构为to have been done.
eg:I would like to have done it.
To have been caught in a sandstorm was a terrible experience.
④完成进行式表示动作发生在谓语动词之前到此刻仍然进行,一般只有主动形式,结构为to have been doing.
eg:He seems to have been spying for both sides.

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