2 verbs. 1 Harry was swimming / swum when he saw / was seeing the shark. 2 We were leaving / left while my granddad was sleeping / slept. 3 I talked / was talking to a friend when you were phoning / phoned me. 4 They were eating / ate their sandwiches while they walked / were walking to school. 5 My aunt was driving / drove home when she had / was having an accident.
2. We left while my granddad was sleeping
3. I was talking to a friend when you phoned me
4. They ate their sandwiches while they were walking to school
5. My aunt was driving home when she had an accident