*Change the verb in these sentences (a) to the past tense, (b) to the Future tense, (c) to the perfect present tense.
2. They use that one : a. They used that one
b. They will use that one
c. They have used that one
3. We study English together : a. We studied English together
b. We will study English together
c. We have studied English together
4. They discuss their work : a. They discussed their work
b. They will discuss their work
c. They have discussed their work
5. They have enough time : a. They had enough time
b. They will have enough time
c. They have had enough time
6. I do all of the lesson : a. I did all of the lesson
b. I will do all of the lesson
c. I have done all of the lesson
7. He sits in that row : a. He seat in that row
b. He will sit in that row
c. He has seat in that row
8. I drive my car : a. I drove my car
b. I will drive my car
c. I have driven my car
9. She hides her money : a. She hide her money
b. She will hide her money
c. She has hiden her money
10. We go to school : a. We went to school
b. We will go to school
c. We have gone to school
11. He takes much time : a. He took much time
b. He will take much time
c. He has token much time
13. Do you enjoy that work? : a. Did you enjoy that work?
b. Will you enjoy that work?
c. Have you enjoyed that work?
14. Does he write many letters? : a. Did he write many letters?
b. Will he write many letters?
c. Has he writen many letters?
15. Do you send many letters? : a. Did you send many letters?
b. Will you send many letters?
c. Have you sent many letters?
16. Do they explain everything? : a. Did they explain everything?
b. Will they explain everything?
c. Have they explained everything?
17. Does she attend that class? : a. Did she attend that class?
b. Will she attend that class?
c. Has she attended that class?
18. Do you have enough time? : a. Did you have enough time?
b. Will you have enough time?
c. Have you had enough time?
19. Do they copy the sentences? : a. Did they copy the sentences?
b. Will they copy the sentences?
c. Have they copied the sentences?
20. Does she have much trouble : a. Did she have enough trouble?
b. Will she have enough trouble?
c. Has she had enough trouble?
21. Does she do good work? : a. Did she do good work?
b. Will she do good work?
c. Has she done good work?
22. Do the students practice? : a. Did the students practice?
b. Will the students practice?
c. Have the students praticed?
24. He doesn't work hard : a. He didn't work hard
b. He won't work hard
c. He hasn't worked hard
25. I don't have any energy : a. I didn't have any energy
b. I won't have any energy
c. I haven't had any energy
26. He doesn't pay his bills : a. He didn't pay his bills
b. He won't pay his bills
c. He hasn't paid his bills
27. We don't see that fellow : a. We didn't see that fellow
b. We won't see that fellow
c. We haven't seen that fellow
28. She doesn't use this one : a. She didn't use this one
b. She won't use this one
c. She hasn't used this one
29. They don't remember it : a. They didn't remember it
b. They won't remember it
c. They haven't remember it
30. I don't do much work here : a. I didn't do much work here
b. I won't do much work here
c. I haven't done much work here
31. He doesn't listen carefully : a. He didn't listen carefully
b. He won't listen carefully
c. He hasn't listened carefully
