1.
We shall go sightseeing if we have time.
2. If I were you I would not do it.
3. I should have bought
something different if I had known it.
4. I shall go shopping if have some money.
5. If you see Alec, say hellow.
6. The patient would have been better if he had taken the pills.
7. They would have prepared
for the examination better if they had had time.
8. I should have brought my friends to
the stadium if iI had known the way.