B2 GRAMMAR · PRACTICAL GUIDE

Modal verbs for deduction

Use must, might, may and can’t to show how certain you are about a conclusion.

Bir çıkarımdan ne kadar emin olduğunuzu must, might, may ve can’t ile gösterin.

STRUCTUREmust/might/may/can’t + base verb; modal + have + past participle
BEST FOR · evidence-based guesses about present and past

See the pattern in use

POSITIVE
The lights are on, so they must be home.Işıklar açık; evde olmalılar.
NEGATIVE
This can’t be the correct platform.
QUESTION
Could the email have gone to spam?

Common learner mistake

She must to be busy.✓ She must be busy.

Read the structure again, then say the corrected sentence aloud as one complete phrase.

TURN THE RULE INTO A SKILL

Notice it. Say it. Use it.

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