第2个回答 推荐于2018-05-09
1. 主将从现 I will help you if you help me.
2. 主现从现 If you help others, they are likely to help you in return.
3. 虚拟 If I were you , I would not do that.
If I had been you, I would have gone there.
If I were/ should be/ were to be you , I would go there.本回答被网友采纳