Modals of deduction

Modal of deduction: must We use MUST when we have strong evidence and we are certain that something is true. You must be tired after such a long drive. She must be the new boss. I saw her in the company. Modal of deduction: might/may, could We use MIGHT/MAY when we have some evidence and we think something is possible but we’re not certain. Note that the possibility can also be negative — might not, may not. Suzie's looking for work. She might be interested in this job offer. It's very early. The car might not be ready. Sally could be at home. I don't know

Modal of deduction: can't We use CAN'T (CANNOT) when we have strong evidence and we are certain that something is NOT true. he can't be the President. He hasn't got any bodyguards. She can't be in London yet. her flight is delayed

modals of deduction

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1. She must be terrified.2. It might/ may / could be a scene from a horror movie. 3. His intentions can't be good.

Look at the images. What can you deduce??

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1.He must be sick.2.He might / may/could have the flu. 3. He can't be feeling well

1. She must be unconscious.2.It might/ may /could be April Fools'Day 3.She can't be happy when she wakes up.

1. He must be running away.2. He might/may/could be a criminal. 3. The people on the plane can't be very friendly.

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SPECULATING SITUATIONS

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DETECTIVE TIMELINE

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Create your own crime scene

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