1. if you (not be) busy, we could go for a walk2.if i (have) enough money, i would have taken a taxi3.if i were you, i (buy) a new suit4.if (be) interested in the film, i would have gone to the cinema5.if we (not take) the wrong turning, we would not have arrived late6.we can not afford to go to austria. if we (have) more money, we (go) skiing there.7.i did not know you werein hospital. if i (know), i (go) to visit you8.ken got to the station in time to catch his train. if he (miss) it, he (be) late for his interview9.tom does not know spanish. if he (know) it, he (help) us to translate this article10.it is good that you reminded me about ann,s birthday. i (forget) it if you (not remind) me.

1. If you weren't busy, we could go for a walk
2. If I had had enough money, I would have  taken a taxi
3. If I were you, I would buy a new suit
4. If I was interested in the film, I would have gone to the cinema
5. If we had not taken the wrong turning, we would not have arrived late
6. We can not afford to go to Austria. If we had more money, we would go skiing there.
7.I did not know you werein hospital. If I knew, I would go to visit you
8. Ken got to the station in time to catch his train. If he missed it, he would be late for his interview
9.Tom does not know Spanish. If he knew it, he would help us to translate this article
10.It is good that you reminded me about Ann's birthday. I would forgot it if you did not reminded me.