虚拟语气中主句中的助动词would could should might 怎么选

题目

虚拟语气中主句中的助动词would could should might 怎么选

答案

动词形式
时间x05从句x05主句
与现在事实相反x05动词过去式（be的过去式一般用were）x05would
should + 动词原形
could
might
与过去事实相反x05had +过去分词x05would
should have+过去分词
could
might
与将来事实
可能相反x05动词过去式/should +动词原形
were to＋动词原形x05would
should +动词原形
could
might