Write the correct full form of the verb. Don't use short forms with (') in this task!
Use the rules about if-sentences and wish-sentences.
1. If I _____ you, I would go to the dentist’s. (be)
2. I have lost my keys. If I had been more careful, I ____ them. (lose)
3. Did you buy that hat you saw? No, but I wish I ____ it. (buy)
4. You _______ my notebook, if you want to. (can / borrow)