If I (have) a superpower, I (stop) all wars in the world.
had, would stop
The laboratory staff (call) you when they (get) your blood test results.
will call, get
If she (be) free tomorrow, we (go) shopping together.
is, will go
If you (stop) smoking, you (be) much healthier
stop, will be
If I (not work), I (travel a lot).
didn't work, would travel
You (not catch probably) a cold if you (take) Vitamin C every day.
probably won't catch, take
I (go) to bed early if I (not have to) work at night
would go, didn't have to
I (offer) you a drink if we (have) any clean glasses.
would offer, had
If there (be) life on far-away planets, I (live) live on one
was/were, would live
If you (do) more exercise, you (begin) to lose your weight.
do, will begin
If you (be) here, I (show) you my favourite place in the city.
were, would show
Your condition (not improve), if you (not follow) the doctor's prescriptions.
won't improve, don't follow
If (not buy) a lot of books, I (have) a lot of money
didn't buy, would have
If it (not start) raining, I (go) for a walk
doesn't start, will go