could never have done和could not do有什么区别

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could never have done和could not do有什么区别
could never have done和could not do有什么区别

could never have done和could not do有什么区别
could never have done 意思是“绝对不会做出那样的事”,和品德或承诺有关.属于虚拟语气的应用,未必是针对过去已经发生过的事.
例如：
I could never have done somthing like that to hurt your feeling.
could not do 有两种可能的用法,一是能力有所不及,一是有能力但是不愿意做.同样也没有特定时间的关联性.
例如：
I could not play piano even if I wanted to.
I could not do anything that may ruin my chance of getting that scholarship.

一个是永远做不到，或者永远不能这样做。
后者是，不能做。表示外部条件或者自身“认为”不能做。
e.g.
i could not do anything illegal

could never have done意为：绝不会那样做
could not do指从能力和意愿上讲不能做

could never have done could never have done 造句 I don't think i could never do for i don't wanna look back,cause i know that we have,something the past could never change.and i'm stu翻译 could i have ---------stamps?sorry,i don't have----------------填词 could i have ---------stamps?sorry,i don't have----------------填词 could never have done和could not do有什么区别 You don't smoke,don't you? _____.I have never smoked a cigarette before. I love you ,always have always will 、but you don't belong with me .never have never will Never have I felt so excited可以改成 I DON‘T have felt so excited Could I have some bananas,please?Sorry,we don't have some. If l could do it all over again,i never would have broken Up with 谁能给我讲解一下和could never have done 的相关知识? Flowers could never have kept me spellbound.keep sb. do/doing 为什么会是 spellbound (3/6)ift of happiness each day .Never have I known it could be this way my brother does not sweat the life he could never have~翻译 It could never have kept me spellbond.句子中,could和have分别是什么比?频度副词应该在have前还是后情态动词+have done 用法及意义must have done need have done daren't have donecould never have done could have done