Change
the verbs in these sentences (a) to the past tense, (b) to the future tense,
and (c) to the perfect present tense. Study the example carefully.
the verbs in these sentences (a) to the past tense, (b) to the future tense,
and (c) to the perfect present tense. Study the example carefully.
1. I
spend my money. (FROM EXAMPLE)
spend my money. (FROM EXAMPLE)
(a) I
spent my money.
spent my money.
(b) I
will spend my money.
will spend my money.
(c) I
have spent my money.
have spent my money.
2. They
use that one.
use that one.
(a) They
used that one.
used that one.
(b) They
will use that one.
will use that one.
(c) They
have used that one.
have used that one.
3. We
study English together.
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.
discuss their work.
(a) They
discussed their work.
discussed their work.
(b) They
will discuss their work.
will discuss their work.
(c) They
have discussed their work.
have discussed their work.
5. They
have enough time.
have enough time.
(a) They
had enough time.
had enough time.
(b) They
will have enough time.
will have enough time.
(c) They
have had enough time.
have had enough time.
6. I
do all of the lessons.
do all of the lessons.
(a) I
did all of the lessons.
did all of the lessons.
(b) I
will do all of the lessons.
will do all of the lessons.
(c) I
have done all of the lessons.
have done all of the lessons.
7. He
sits in that row.
sits in that row.
(a) He
sat in that row.
sat in that row.
(b) He
will sit in that row.
will sit in that row.
(c) He
has sat in that row.
has sat in that row.
8. I
drive my car.
drive my car.
(a) I
drove my car.
drove my car.
(b) I
will drive my car.
will drive my car.
(c) I
have driven my car.
have driven my car.
9. She
hides her money.
hides her money.
(a) She
hid her money.
hid her money.
(b) She
will hide her money.
will hide her money.
(c) She
has hidden her money.
has hidden her money.
10. We
go to school.
go to school.
(a) We
went to school.
went to school.
(b) We
will go to school.
will go to school.
(c) We
have gone to school.
have gone to school.
11. He
takes much time.
takes much time.
(a) He
took much time.
took much time.
(b) He
will take much time.
will take much time.
(c) He
has taken much time.
has taken much time.
12. Does
he eat there? (FROM EXAMPLE)
he eat there? (FROM EXAMPLE)
(a) Did
he eat there?
he eat there?
(b) Will
he eat there?
he eat there?
(c) Has
he eaten there?
he eaten there?
13. Do
you enjoy that work?
you enjoy that work?
(a) Did
you enjoy that work?
you enjoy that work?
(b) Will
you enjoy that work?
you enjoy that work?
(c) Have
you enjoyed that work?
you enjoyed that work?
14. Does
he write many letters?
he write many letters?
(a) Did
he write many letters?
he write many letters?
(b) Will
he write many letters?
he write many letters?
(c) Has
he written many letters?
he written many letters?
15. Do
you send money letters?
you send money letters?
(a) Did
you send money letters?
you send money letters?
(b) Will
you send money letters?
you send money letters?
(c) Have
you sent money letters?
you sent money letters?
16. Do
they explain everything?
they explain everything?
(a) Did
they explain everything?
they explain everything?
(b) Will
they explain everything?
they explain everything?
(c) Have
they explained everything?
they explained everything?
17. Does
she attend that class?
she attend that class?
(a) Did
she attend that class?
she attend that class?
(b) Will
she attend that class?
she attend that class?
(c) Has
she attended that class?
she attended that class?
18. Do
you have enough time?
you have enough time?
(a) Did
you have enough time?
you have enough time?
(b) Will
you have enough time?
you have enough time?
(c) Have
you had enough time?
you had enough time?
19. Do
they copy the sentences?
they copy the sentences?
(a) Did
they copy the sentences?
they copy the sentences?
(b) Will
they copy the sentences?
they copy the sentences?
(c) Have
they copied the sentences?
they copied the sentences?
20. Does
she have much trouble?
she have much trouble?
(a) Did
she have much trouble?
she have much trouble?
(b) Will
she have much trouble?
she have much trouble?
(c) Has
she had much trouble?
she had much trouble?
21. Does
she do good work?
she do good work?
(a) Did
she do good work?
she do good work?
(b) Will
she do good work?
she do good work?
(c) Has
she done good work?
she done good work?
22. Do
the students practice?
the students practice?
(a) Did
the students practice?
the students practice?
(b) Will
the students practice?
the students practice?
(c) Have
the students practiced?
the students practiced?
23. I
don’t stay there. (FROM EXAMPLE)
don’t stay there. (FROM EXAMPLE)
(a) I
didn’t stay there.
didn’t stay there.
(b) I
won’t stay there.
won’t stay there.
(c) I
haven’t stayed there.
haven’t stayed there.
24. He
doesn’t work hard.
doesn’t work hard.
(a) He
didn’t work hard.
didn’t work hard.
(b) He
won’t work hard.
won’t work hard.
(c) He
hasn’t worked hard.
hasn’t worked hard.
25. I
don’t have any energy.
don’t have any energy.
(a) I
didn’t have any energy.
didn’t have any energy.
(b) I
won’t have any energy.
won’t have any energy.
(c) I
haven’t had any energy.
haven’t had any energy.
26. He
doesn’t pay his bills.
doesn’t pay his bills.
(a) He
didn’t pay his bills.
didn’t pay his bills.
(b) He
won’t pay his bills.
won’t pay his bills.
(c) He
hasn’t paid his bills.
hasn’t paid his bills.
27. We
don’t see that fellow.
don’t see that fellow.
(a) We
didn’t see that fellow.
didn’t see that fellow.
(b) We
won’t see that fellow.
won’t see that fellow.
(c) We
haven’t seen that fellow.
haven’t seen that fellow.
28. She
doesn’t use this one.
doesn’t use this one.
(a) She
didn’t use this one.
didn’t use this one.
(b) She
won’t use this one.
won’t use this one.
(c) She
hasn’t used this one.
hasn’t used this one.
29. They
don’t remember it.
don’t remember it.
(a) They
didn’t remember it.
didn’t remember it.
(b) They
won’t remember it.
won’t remember it.
(c) They
haven’t remembered it.
haven’t remembered it.
30. I
don’t do much work here.
don’t do much work here.
(a) I
didn’t do much work here.
didn’t do much work here.
(b) I
won’t do much work here.
won’t do much work here.
(c) I
haven’t done much work here.
haven’t done much work here.
31. He
doesn’t listen carefully.
doesn’t listen carefully.
(a) He
didn’t listen carefully.
didn’t listen carefully.
(b) He
won’t listen carefully.
won’t listen carefully.
(c) He
has’t listened carefully.
has’t listened carefully.
Write
the correct form of the verb in parentheses in each sentence. Use only the
perfect present tense. Check your answer with the list of irregular verbs in
the appendix.
the correct form of the verb in parentheses in each sentence. Use only the
perfect present tense. Check your answer with the list of irregular verbs in
the appendix.
1. Mr.
Harris taught English at this school
for five years.
Harris taught English at this school
for five years.
2. I
(write) three or four letters to that company.
(write) three or four letters to that company.
I have written three or four letters to that company.
3. The
students in this class (do) those two lessons already.
students in this class (do) those two lessons already.
The students in this class have done those two lessons already.
4. I
(know) Professor Moore for more than twelve years.
(know) Professor Moore for more than twelve years.
I have known Professor Moore for more than twelve years.
5. Richard
(take) three courses in English at this school.
(take) three courses in English at this school.
Richard has taken three courses in English at this school.
6. These
steps are dangerous. I (fall) on them several times.
steps are dangerous. I (fall) on them several times.
These steps are dangerous. I have fallen on them several times.
7. Mr.
Kramer (be) in United Sates for three years.
Kramer (be) in United Sates for three years.
Mr. Kramer has been in United Sates for three years.
8. The
janitor (shut, already) the back door.
janitor (shut, already) the back door.
The janitor has shut already the back door.
9. The
students (read) all of the stories in that book.
students (read) all of the stories in that book.
The students have read all of the stories in that book.
10. Marjorie
(choose) a pretty dress for the party.
(choose) a pretty dress for the party.
Marjorie has chosen a pretty dress for the party.
11. I
(speak) to my boss about the problems several times.
(speak) to my boss about the problems several times.
I have spoken to my boss about the problems several times.
12. That
tree (grow) at least five feet since last year.
tree (grow) at least five feet since last year.
That tree has grown at least five feet since last year.
13. Miss
King (spend) over eighteen hundred dollars since May.
King (spend) over eighteen hundred dollars since May.
Miss King has spent over eighteen hundred dollars since May.
14. Mr.
and Mrs. Smith (buy) a new house in North Plains.
and Mrs. Smith (buy) a new house in North Plains.
Mr. and Mrs. Smith have bought a new house in North
Plains.
Plains.
15. The
real estate agent (sell) the Smith’s old house.
real estate agent (sell) the Smith’s old house.
The real estate agent has sold the Smith’s old house.
16. Charles
(have) a bad cold for a whole week.
(have) a bad cold for a whole week.
Charles has had a bad cold for a whole week.
17. I’m
sorry. I (forget) the name of that book.
sorry. I (forget) the name of that book.
I’m sorry. I have forgotten the name of that book.
18. We
(hear, already) that new song several times.
(hear, already) that new song several times.
We have heard already that new song several times.
19. Mr.
Wilson isn’t here. He (go) out of town for the weekend.
Wilson isn’t here. He (go) out of town for the weekend.
Mr. Wilson isn’t here. He has gone out of town for the weekend.
20. Mr.
Kennedy (wear) his blue suit to the office only twice.
Kennedy (wear) his blue suit to the office only twice.
Mr. Kennedy has worn his blue suit to the office only twice.
21. I
(sit) in this same seat since the first day of classes.
(sit) in this same seat since the first day of classes.
I have sat in this same seat since the first day of classes.
22. The
money isn’t in this drawer. Someone (steal) it!
money isn’t in this drawer. Someone (steal) it!
The money isn’t in this drawer.
Someone has stolen it!
Someone has stolen it!
23. Up
to now, I (understand) every lesson in the book.
to now, I (understand) every lesson in the book.
Up to now, I have understood every lesson in the book.
24. We
(have) absolutely no trouble with our car so far.
(have) absolutely no trouble with our car so far.
We have had absolutely no trouble with our car so far.
25. No
one (find) that girl’s purse and gloves yet.
one (find) that girl’s purse and gloves yet.
No one has found that girl’s purse and gloves yet.
26. The
weather (be) very warm ever since last Thursday.
weather (be) very warm ever since last Thursday.
The weather has been very warm ever since last Thursday.
27. Mr.
Anderson and Mr. Brown (have) lunch already.
Anderson and Mr. Brown (have) lunch already.
Mr. Anderson and Mr. Brown have had lunch already.
28. I
(see) the Empire State Building hundreds of times.
(see) the Empire State Building hundreds of times.
I have seen the Empire State Building hundreds of times.
29. We
(speak, already) to the director and (give) him the message.
(speak, already) to the director and (give) him the message.
We have spoken already to the director and have given him the message.
30. Grandmother
(fly, never) in an airplane before.
(fly, never) in an airplane before.
Grandmother has flown never in an airplane before.
31. You
(tear) your shirt! There’s a hole in the left sleeve.
(tear) your shirt! There’s a hole in the left sleeve.
You have torn your shirt! There’s a hole in the left sleeve.
32. I
(already) the customer’s letter and (write) a reply to him.
(already) the customer’s letter and (write) a reply to him.
I have already the customer’s letter and have written a reply to him.
