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