3. wish后宾语从句中的谓语构成
　　动词wish后的宾语从句表示未实现的或不可能实现的愿望，其宾语从句中的谓语动词要用虚拟语气，有以下三种构成形式。

　　1) 表示现在不可能实现的愿望，宾语从句中的谓语动词用一般过去时。(be的过去式为were)。
　　I wish I had enough money to buy a car.
　　I wish I were as young and energetic as you.

　　2) 表示过去未能实现的愿望，宾语从句中的谓语动词用过去完成时(had +过去分词)或“would / could + have +过去分词 ”。
　　I wish I hadn’t made such a mistake.
　　I wish I could have done it better.

　　3) 表示将来不可能实现的愿望，宾语从句中的谓语动词用“would / should (could, might) +动词原形”。
　　I wish I would not get old.
　　I wish I could travel around the world one day.