should/ought to/might/ mustn't/cant't/need't/don't/could/ have do_英语解答

should/ought to/might/ mustn't/cant't/need't/don't/could/ have done是哪类虚拟语气,
非真实，情态动词，意愿成分，个别特殊，哪类虚拟语气

人气：393 ℃　时间：2019-08-20 21:10:06

解答

should have done表示主句对过去的虚拟
非真实与现实相反