Something is true. There's a good reason to think so: It must be an old mobile phone. It looks like one I saw at a museum., Something is possible. But we aren't sure: Perhaps cleaners may use this., I think it might be an old hairdryer., It could be something that scientists use., We're sure something isn't true: It can't be a sweet maker. It's too small.,

Modals of probability / deduction

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