1. I ... (phone) my son and ... (say) that Bob

1. I phoned my son and said that Bob had seen him in the pub. (Последовательность деяний в прошедшем, а до этого совершённое деяние)
2. Yesterday he read a book at school. (Факт прошедшего)
3. She is cooking fish now. (В данный момент)
4. By the time we got to Brazil, we had already spent all our money. (By the time начинает придаточное, а в главном предложении показывается итог в прошедшем)
5. My friends usually skate in winter. (Обыденность)
6. John will travel around the world if he wins a lottery prize. (Придаточное условия)
7. If the storm doesnt break out, the ship wont sink. (Придаточное условия)
8.Sam has lost his keys. So he cant open the door. (Результат)
9. If we have free time, we will start a new hobby. (Придаточное условия)
10. We have been to Paris many times. (Итог)