1. I do not know the answer so I can tell you
=> If I knew the answer, I would tell you.
2. He can not park near his office , that is Why he does not come by car
=> If he could park near his office, he would come by car.
3. We have three children , so we won not take a year off and travel around the world
=> If we didn't have three children, we would take a year off to travel around the world.
4. Go right now or you will be late for the train
=> If you don't go right now, you will be late for the train.
5. I have not got any spare time . I won not learn Russian
=> If I had some time, I would learn Russian.
#NOCOPY