1. I go. 2. I went. 3. I shall go. 4. I do not go. 5. I
didn't go. 6. I shall not go. 7. Do you watch. 8.
Did you watch. 9. Will you watch. 10. When do
you leave. 11. When did you leave. 12. When
will you leave. 13. My brother goes, he leaves, he
works, is, he walks, he does not take, did not go,
he got. 14. Did you have, I didn't. 15. What did
you buy, I bought. 16. My father did not read, he
was, he will read. 17. What mark did she get.