if引导的虚拟语气怎样解释

显示全部楼层 · 2012-10-21 21:57:20

虚拟语气在if非真实条件句中：与现在事实相反，从句谓语用were/did/had，主句谓语should/could/would/might+动词原形；与过去事实相反，从句谓语had+过去分词，主句谓语should/would /might/could+have done；与将来事实相反，从句谓语did/were to do/should+动词原形（不能用would），主句谓语should/would/could/might+动词原形。...

千问 · 2012-10-21 21:57:20

if 引导的是条件状语从句，还需要主句意思才完整，例如，对现在情况的虚拟语气的句子：If I were you,what would you do ?...

千问 · 2012-10-21 21:57:20

你是整个知识点不懂呢还是某个部分不懂呢？...