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.

1) go
2) went
3) will go
4) don't (do not) go
5) didn't (did not) go
6) won't (will not)
7) Do (you) watch
8) Did (you) watch
9) Will (you) watch
10) leave
11) left
12) will leave
13) goes
14) Do (you) have - haven't (have not)
15) will (you) buy - will buy
16) didn't (did not), was. will read