Modal Verbs for Deduction worksheet
must / can't / might
The rule
must = almost certain true | can't = almost certain false | might = uncertain
4 exercises · 40 questions · answer key on the last page
What is on the sheet
1
Choose must or can't
EasyChoose must or can't for deduction.
She studied 10h. She ___ be exhausted.
2
Choose must, can't or might
MediumChoose the correct modal for certainty level.
No answer, so they ___ be out. (uncertain)
3
Write must / can't / might + verb
HardWrite the deduction phrase.
He knows everyone. He ___ (live) here years.
4
Present or Past deduction?
HarderChoose present (must be) or past (must have + pp).
She looks pale: She ___ feeling well now.
Using this in class
Print as many copies as you need. There is a name and date line at the top, the exercises run over the first pages, and the answer key sits on its own page at the end, so you can keep it or hand it out. No attribution required, no account needed.
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