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We use **might**, **can't**, and **must** to guess about now. They help us say what we think is true. Use **must** when you are almost sure. The library **must** be open. I see many people inside. Use **can't** when you are almost sure it is NOT true. She **can't** be at the museum. It is closed today. Use **might** when you are not sure. The restaurant **might** be full. It is Saturday night. After **might**, **can't**, and **must**, use the verb without to. He works at the pharmacy, so he **must be** tired.
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This is a A2 Elementary (A2) English lesson from Muse English's daily series on 2026-10-06.
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This lesson teaches 5 new words with photos, meanings, examples and pronunciation audio.
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