虚拟语气:表示说的话不是事实，不可能发生或者说可能性很小的情况，表达一种愿望、建议、假设。一、 条件状语从句中的用法从句 谓语形式主句 谓语形式现在were/ did would/could/should (+not)+ do过去had done would/could/should/might (not)+ have done将来1. were/did2. should do3. were to dowould/could/should/might(not)+ do 简单记法：if were/did, would doif had done, would have doneif were to do/should do, would do举例：If I were you, I would do nothing about it.If you had taken your teachers advice, you wouldnt have made such
