1) 一般事实

If we succeed, what will the people say?

Suppose it rains, what shall we do?

Persevere(坚持） and you’ll succeed.

2)虚拟条件句

If I were you, I would go.

If you had seen it, you would have been moved.

3)反条件句

Unless you try, you’ll never succeed.

Don’t move, or/else/otherwise I’ll shot.

4)唯一条件句

If only I have another chance, I shall do better.

Only in this way can we learn English well.

So/As long as we don’t lose heart, we’ll succeed.

5)推论条件句

Since that is so, there is no more to say.

Now that you are grown up, you must stop this behavior.