Open the backets and put the verb in the correct form
1.If he (break) the window,he (pay) for a new one.
2.If it (not/be) cold , they (not/lit) the fire.
3.If a had free time now or tomorrow , I (send) the letter myself.
4.If I were you I (visit) the doctor.
5.If he (have) free time yesterday, he (do) the work himself.