Past Modal Form
Meaning and Use
Past Participles
Error Correction
100
A: I ______ (could/go) to the movies with you, but I decided to study instead. B: You didn't miss anything. You ________ (might/not/like) it anyway.
A: I COULD HAVE GONE to the movies with you, but I decided to study instead. B: You didn't miss anything. You MIGHT NOT HAVE LIKED it anyway.
100

List the modal verbs used to guess about a past situation when you don't have much proof. (3)

May (not) have, might (not) have, could have.

100

1) Cut, 2) Put, and 3) Hurt

Answer: Cut, Put, Hurt

100

They mayn't have called yet.

They may not have called yet.

200
A: I __________ (should/not/drive) to work this morning. There was so much traffic. B: You ________ (should/take) the bus. It was empty.
A: I SHOULDN'T HAVE DRIVEN to work this morning. There was so much traffic. B: You SHOULD HAVE TAKEN the bus. It was empty.
200

When do you use "Must have"?

To draw conclusions about the past when you are certain of something, and you believe there is only one logical explanation. Inferences.

200

1) Bring, 2) Buy, and 3) Catch

Answer: Brought, Bought, Caught

200

When he could have seen?

When could he have seen?

300
A: She ______ (could/not/leave) yet. We're not that late. B: But she ______ (might/forget) to wait for us.
A: She COULDN'T HAVE LEFT yet. We're not that late. B: But she MIGHT HAVE FORGOTTEN to wait for us.
300

1) When I worked in the city, I (could buy/could have bought) fresh coffee on my way to the office, so I never made any at home in the morning. 2) I (could ride/could have ridden) my bicycle to school every day, but I never did because I was afraid of the traffic.

1) When I worked in the city, I COULD BUY fresh coffee on my way to the office, so I never made any at home in the morning. 2) I COULD HAVE RIDDEN my bicycle to school every day, but I never did because I was afraid of the traffic.

300

1) Sit, 2) Stand, and 3) Fly

Answer: Sat, Stood, Flown

300

He might have not caught the train.

He might not have caught the train.

400
A: You ______ (must/have) a great time last night. I heard you come in at 2:00 a.m. B: It was great. you ______ (should/stop by) after you left the library. You ______ (could/hear) the new band.
A: You MUST HAVE HAD a great time last night. I heard you come in at 2:00 a.m. B: It was great. you SHOULD HAVE STOPPED BY after you left the library. You COULD HAVE HEARD the new band.
400

1) I should have told you. a) I think I made a mistake b) I'm sorry that I didn't tell you. 

2) He couldn't have passed my driver's test. He didn't practice at all! a) I'm surprised that he passed. b) He didn't pass.

1) I should have told you. a) Correct b) Correct

2) I couldn't have passed my driver's test. I didn't practice at all! a) Correct b) Wrong

400

1) Drink, 2) Dig, 3) Forget, and 3) Hide

Answer: Drunk, Dug, Forgotten, Hidden

400

She must have a cold yesterday.

She must have had a cold yesterday.

500
A: I lost my keys last night. I ______ (might/leave) them at your house. B: No, you ______ (could/not). You drove home with them. A: That's right. Then I ______ (must/drop) them after I parked the car. B: You ______ (might/lock) them in your car. Have you checked?
A: I lost my keys last night. I MIGHT HAVE LEFT them at your house. B: No, you COULDN'T HAVE. You drove home with them. A: That's right. Then I MUST HAVE DROPPED them after I parked the car. B: You MIGHT HAVE LOCKED them in your car. Have you checked?
500

You were in a hurry at the post office. You sent an expensive birthday gift to your aunt. She never received it, and you didn't insure it.

I should have insured my aunt's birthday gift. I shouldn't have been in such a hurry.

500

1) Light, 2) Shine, 3) Get, 4) Become and 5) Rise

Answer: Lit, Shone, Got, Become, Risen

500

I should have asked him. I'm sorry that I did.

I shouldn't have asked him. I'm sorry that I did. 

I should have asked him. I'm sorry that I didn't.