1. Mary didn't talked to John on the phone last night ⇒ talk
2. Anne walk to class yesterday morning instead of taking a bus⇒walked
3. It's horrible when you are a cold and keep blowing the nose⇒have
4. My back is very pain now because I was carrying a heavy backpack yesterday⇒ carry, paining
5. The rain stoped a few minutes ago. The sky is clear now⇒ stopped , clearing