need have done need在这里是情态动词对吧 情态动词是有时态变化的呀 完全可以说成 needed do吧 为什么都要和现在完成来构成过去式呢 哪位朋友能帮我弄明白这问题吗 像这样搭配的不止need 还有

could have done和need have 用need not have done 造句,请造5句, 关于英语ought to have done 与should have done的区别 有need have done needn,t have done 与should hneedn,t have done 与shouldn't have done 区别有need have done didn't need to和和need't have done什么区别? 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 have something done和need to be done如题 请问have to be done ,need to be done怎么使用?是什么时态?表示什么时间段? need have done 的用法用在什么句子中,它的意思等,各方面的,全面一点, need doing to/be done 用在什么句型上 need doing to/be done 用在什么句型上 what a pity considering his ability and experience,he ( )better.A.need have done B.mA.need have done B.must have done C.can have done D.might have done为什么不选C啊 给我讲讲吧 What a pity! Considering his ability and experience, he _____ better. A. need have done B. must have done C. can have done D. might have done what a pity considering his ability and experience ,he _betterA,need have done B,must have done C,can have done D,might have done need have done ,must have done ,can/could have done ,should have done 的区别是什么?意思是什么?主要用于哪种句型?请分别举例说明, 求翻译,they always need things to have explained.这是have sth done need need 关于英语情态动词would rather have done need not have done各表示什么意义?请造句 need not have