If i (have) any tree time. i ( go) to the swimming pool i (not buy) this coat. if i (be) you the soup (taste) better,if it (be not) so salty if i (can) cook just like you,i (open) my own restaurant

if I had any free time, I would go to the swimming pool.

I would not buy this coat, If I were(или was) you.

The soup would taste better if it was not so salty.

If i could cook just like you, I would open my own restaurant. 

If I have any tree time. I go to the swimming pool I don t buy this coat. if I be you the soup taste better, if it doesn't be so salty
if I can cook just like you, I open my own restaurant