Open the brackets:
1.I (to help) you with these letters if you (to find) a type-writer. 2. When you (to start) your work next week I still (to busk) in the sun. 3. What you (to do) if the car (to break down). 4. I don’t know whether they (to send) that cheque to the bank. 5. Their work (to be) good for nothing if they (to work) like this. 6. I just want to know when you (to be ready) with this grammar test.