have done to,can have done

have done to,can have done

has done to是现在完成时。has：有；have 的第三人称单数现在时形式。done：adj. 完毕；了结；结束；煮熟；熟了；合乎礼仪；合乎规矩；得体。to：prep. 到；to have done用法简介to have done用法，具体内容如下所示：方法/步骤1 定式完成时to have done有三种用法：1) 表示发生在谓语动作之前的动作。2 (2) 表示在某个给定的时间之前

＞０＜ 3.现在完成时(have done):重要考点，初二以后几乎都是完成时态。A) 表示动作到现在为止已经完成或刚刚完成。zhidao.baidu|基于976个网页2. 所做的每一件事Look howI would like to have done it.我本想把这件事做完.It's foolish of him to have done so.他这么做真是愚蠢之极.She told him he ought not to have done it.她告诉他本不应

⊙﹏⊙ 1.情态动词+have done的构成may/might have done可能已经发生了某事could have done本能够做某事can't/couldn’t have done不可能已经发生了某事must have done一定已经发生了havedoneto是什么时态我从内心里对我对家庭所做的一切感到抱歉have done to是什么时态have to可以看作情态动词，本身是一般现在时态。例句：I forgive what you have done

˙﹏˙ I ought to have gone home last Sunday. 我理应上星期日回家。3.would have done的含义。would have done“本愿意做某事”。非虚拟语气时，would 情态动词加动词原形，have(has) been to 表示"曾经去过某地".have(has) gone to 表示"已经去某地了，还没回来".比如：Where has he been? 他刚才到哪儿了？他已经回来了).Where has he go