虚拟语气,对将来的,if they were to do,否定是if they were not to do嘛

虚拟语气,对将来的,if they were to do,否定是if they were not to do嘛 虚拟语气倒装,对将来的,if they were to do是were they to do,对现在的,if they 虚拟语气对将来的推测中if+主语+were to do if+主语+should+do if+主语+did/were三种 虚拟语气中,与将来事实相反,if从句中should do和were to do有区别吗? 虚拟语气否定句的倒装They would go to the meeting if they should not be 英语虚拟语气 if条件从句,与将来事实相反,从句用did ,were to do,should do.有什么区别? 虚拟语气的用法,谢谢虚拟语气：they treated me as if i were a prince.中虚拟语气是什 虚拟语气,在与将来事实相反中'did/were''were to do''should do'何时用何种? 关于虚拟语气的虚拟语气中关于跟将来事实相反的,从句用should do或were to do,怎么区分用这两种形式呢?比 If it were to snow 和 If it should snow 都是对将来的虚拟吗?有什么不同呢 虚拟语气 were/was to(将来万一发生的情况) 虚拟语气if省略问题If I were invited, I would go to the party.这里的were