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Degrees of Certainty (Past Time)
Past Form of "Should"
Perfect Modals in the Passive Voice
Vocabulary
100
Fix the mistake: My friend is sneezing and coughing. She must is sick.
She must be sick.
100
I failed the test. I ___________ (study) more.
should have studied
100
Switch the sentence to passive: A meteor may have killed the dinosaurs.
The dinosaurs may have been killed by a meteor.
100
Do you believe in aliens or are you a __________. provable----skeptic----clearly
skeptic
200
(I am 95% sure that I passed the test.) I ____ the test.
must have passed
200
Fix the mistake: They should have went to the meeting.
They should have gone to the meeting.
200
Fix the mistake: The weather had to have be hot. It was in August.
The weather had to have been hot. It was in August.
200
If I am somewhat certain, I should use which vocab. phrase? There's no question----provable----I suppose
I suppose
300
It was snowing yesterday. You ___________(go) swimming.
What is couldn't have gone
300
I regret not telling her the truth.
I should have told her the truth.
300
Someone ate the cake. The cake ____________ (eat) by the children. (50% sure)
may have been eaten
300
If something is difficult to prove and has many possible answers. It is ________________. provable------debatable------clearly
debatable
400
John was absent yesterday. I haven't heard anything from him. He ________ (have) a doctor's appointment.
may/might/could have had
400
I regret that I forgot his birthday.
I shouldn't have forgotten his birthday.
400
The state _________________ (hit) by the hurricane. (99% sure)
must have been hit
400
If I am not certain about something, I use ____. I'll bet-----maybe----unsolvable
maybe
500
Make a sentence with a modal in the past
They must not have been hungry because they didn't eat.
500
Make a sentence with "Should" in the past form
You should have eaten breakfast.
500
Give a sentence with a perfect modal in the passive voice
The pictures couldn't have been drawn by that artist.
500
Make a sentence for the word, "Clearly"
Clearly, she is very upset about the situation.