虚拟语气从句必须要用过去完成时吗比如说If you had done the work,we should have already gone home.
问题描述：
虚拟语气从句必须要用过去完成时吗
比如说If you had done the work,we should have already gone home.
答
yes
答
表示对过去情况的假设,从句用过去完成时
如果表示的是对于现在情况的假设则用一般过去时