虚拟语气的主句,什么时候用would do?什么时候用would have done?我的参考书上写 主句的事实与现在相反,用would do；主句的事实与过去相反,用 would have done 我不太明白啊 虚拟语气不都是 本来应该

虚拟语气的主句,什么时候用would do?什么时候用would have done?我的参考书上写 主句的事实与现在相反,用would do；主句的事实与过去相反,用 would have done 我不太明白啊 虚拟语气不都是 本来应该 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? 有关英语的题目在虚拟语气中,would和would have到底什么时候用? 关于虚拟语气的问题是不是如果从句与事实相反,就要用虚拟语气,然后主句也要用虚拟语气?我见过一道题We had hoped he would stay longer.从句是虚拟语气,然后主句也要用虚拟语气,那么We thought it wo 关于虚拟语气在虚拟语气的主句中,would/could/should/might这几个情态动词可以互换吗? 如何判断这句话要填入虚拟语气呢?另外如何判断虚拟语气添什么.Shall I stay here? I'd rather____ with us[A] you came[B] you would come是不是只有if引导的虚拟语气,主句才用 if.,主语＋would（等）＋动词 表将来的虚拟语气主句would rather从句什么时态? 虚拟语气什么时候用倒装? 英语高手请进关于虚拟语气的问题有一种：从句对过去虚拟,主句对现在或将来虚拟的混合情况主句用would/could+do还有一种：从句对过去虚拟 主句用would/could/+have do这两种到底有何区别?有如下 英语 if条件虚拟语气If it were not the fact that he was a millionaire,she ________him.A might never marryB will never marryC would never marry D would never have married为什么不是C 对现在的虚拟,从句用过去式,主句用would+动 if用于虚拟语气,主句用would,could,should,might+动词原形,这4个词可以互换吗?请区别性的造句 虚拟语气的一道题是关于对条件状语的虚拟‘what would have happened if you____her child?A had`nt B couldn`t help C wouldn`t help D didn`t help‘‘我觉得选A‘‘应该是对过去的虚拟 主句用HAVE DONE 丛中用 过去完 I'd rather...than...这种结构是虚拟语气吗?我只知道I would rather 要用虚拟语气的 if引导的从句什么时候用虚拟语气 if的具体用法,什么时候用虚拟语气什么时候用一般语气 i would be glad if you could help me.是不是虚拟语气,对过去i would be glad if you could help me.是不是虚拟语气,对过去情况的虚拟,条件句用过去完成时,主句用would/should/might/could+have+过去分词.我实在不会, wish虚拟语气的问题How I wish that I ____law when I was at college.A .had learned B.would have learned C.learned D.would learn主句和从句分别是哪部分? 虚拟语气中的would have done 与could have done结构 有什么 区别?什么时候用would什么时候用could?