must have done是虚拟语气的一种吧?
must have done是虚拟语气的一种吧?
虚拟语气would have done 的用法
关于could have done 的虚拟语气
虚拟语气中对过去的虚拟主句否定是用would have not done or would not have done?
情态动词+have done是虚拟语气吗?
英语 哪些情态动词+have done 是虚拟语气?
shouldn’t have done是虚拟语气么?
would/could/must have done在虚拟语气中怎么用?
would have done应该不仅仅指虚拟语气吧,是否应该还有推测的含义
有must have been的用法么?虚拟语气里面?
虚拟语气 should have done 与 could have done
求虚拟语气的讲解 had sb done sth,sb would have not done