有没有can have done sth?could have done sth有两种意思吗?can't/couldn't have done sth意思又是什么能不能举几个例子?

有没有can have done sth?could have done sth有两种意思吗?can't/couldn't have done sth意思又是什么能不能举几个例子? get sth done&have sth doneget sth done和have sth done有什么区别? have sth.done和get sth.done的区别?和get sth.done有什么区别? have sth doing / have sth to do/ have sth do/ have sth done 的区别have sth doing have sth to do have sth do have sth done我在网上看了些解释,有些说没有have sth doing/do 有的又说有我都被弄混了到底有没有啊 注意：是s can not done sth 和shouldn not have done sth 和might have done sth 和seemtohave done sth 的中文意思能回答起真不错, can not have done sth和be considered to have done sth和offer to do sth 的中文意思 有没有keep sb done sth get sth done /shuold have sth done have sth done意思 have sth done have sth.done have sth done have sth. done 和have sth.to be done用法有什么区别 表示对过去的推测can have done,may have done 有什么不同?有的书上说有can not have done 没有can have done迷糊了◑▂◐ can have done和 could have done有什么区别?那can have done什么用法？ 英语中have的用法have to do have sth do have sth done有什么区别?有没有have sth to do?跟前面的有什么区别? 只听说过有make sth. adj. 有没有make sb. done/make sth. done的呢? could have done 和 can have done 有什么区别?还有would have done