1)
If
I go out tonight, I will go to the cinema.
2)
If
he comes, I will be surprised.
3)
If
we go on holiday this summer, we will go to Spain.
4)
I
will come early, if you want.
5)
If
the weather is fine, we will go for a walk.
6)
If
I get this job, I will earn a lot of money.