Modals of Deduction
Modals of Deduction (Past)
Should / Shouldn't have
100

Kelly won't ride on rollercoasters. 

a) She can't be terrified of heights.

b) She must be terrified of heights.

b) She must be terrified of heights.

100

Suspect number 1 was working at the time of the murder.

a) It must have been him.

b) It couldn't have been him.

c) It might have been him.

b) It couldn't have been him.

100

It's raining cats and dogs out there. 

a) I should bring an umbrella.

b) I should have bring an umbrella.

c) I should have brought an umbrella.

d) I should had brought an umbrella.

c) I should have brought an umbrella.

200

Sandra doesn't speak Japanese.

a) She can't be from Japan.

b) She must be from Japan.

c) She might be from Japan.

a) She can't be from Japan.

200

It takes half an hour to get to school. If they arrived at 7:00 am at school, they

a) must have taken the 6:30 bus.

b) can't have taken the 6:30 bus.

c) may have taken the 6:30 bus.

a) must have taken the 6:30 bus.

200

I have a stomachache. 

a) I should have ate more food after dinner.

b) I shouldn't have ate more food after dinner.

c) I should have eaten more food after dinner.

d) I shouldn't have eaten more food after dinner.

d) I shouldn't have eaten more food after dinner.

300

Beth didn't want to eat.

a) She can't be hungry.

b) She must be hungry.

c) She might not be hungry.

c) She might not be hungry.

300

Julie didn't want to eat at lunch today. She _______ (eat) before.

might have eaten

300
Catherine did poorly on the test and now her parents are angry. She _____________ (study).

She should have studied (more for the test).

400

Nancy just ran 10 kilometers.

a) She can't be tired.

b) She must be tired.

b) She must be tired.

400

I saw Jack yesterday. He ____________ (go) to Spain.

couldn't have gone

400

This soap opera is really bad. Tina doesn't know Jason loves her. He ____________ (tell) her how he feels. 

should have told

500

Tony didn't answer the phone.

a) He can't be busy.

b) He must be busy.

c) He might be busy.

c) He might be busy.

500

We haven't seen Marta smoking for quite some time. She ___________ (stop).

might have stopped.

500

We only have one week to deliver the compositions and I didn't do any. I ______________.

I should have done / written the compositions before.

I shouldn't have left everything for the last minute.

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