to have done的用法例句,have done例句

to have done的用法例句,have done例句

2to have done的双语例句I don't think you ought to have done that. 我想你不应该这样做的。They ought to have done so sooner; it would have saved them numerous misfortunWe were to have been married last year.我们本来打算去年结婚的。

to+have+done用法

2. must have done ——一定做了某事3. can't have done, couldn't have done ——不可能做过某事1-3均表单纯的猜测4. should have done, ought to have done ——本应该做实际He seems to have forgotten his promise.(他似乎忘记了他的承诺。二、to have done的用法1.表示已经完成的动作to have done常用于表示已经完成的动作，这时它一般放在句

to have done用法造句

ˋ＾ˊ 情态动词+have done用法1. Something may have happened to her. 她可能发生了什么事情。She might have had an accident. 她或许遭受了意外. So she must have taken thatto do,to have done,to be doing 都是动词不定式形式，在句子里都用作非谓语动词。一、to do 表达的是尚未发生的动作，或者“做某事”这个行为。称作“不定式”

to have done用法与having done

可以做状语，但不可以做定语.如果做定语，直接用过去分词.如：I am glad to have been invited to this party. 我很高兴被邀请参加这场聚会.（做原因状语）T2.tohave done可与表示愿望、打算、意图的谓语动词一起用，例如hope这个词，I hope to have finished the task(任务) by the end of this month.其中to have fin