Your little brother failed a test. You say: A. You ...

★ Past Modals

Your little brother failed a test. You say:

A. You could have studied.

B. You must studied.

C. “You should have studied. You shouldn’t have played video games all weekend.”

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When you are almost sure that something did not happen, you use …

A. could not have

B. might have

C. must have

D. should not have