PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoStudy the information about uses of modals to express deduction.
1. We express deduction with must be/can’t be, must have been, can’t/couldn’t have been.
He must be at work. He can’t be out.
2. We use must be in the present to express deduction.
You haven’t eaten for hours! You must be hungry.
3. The negative of must be is can’t be (not mustn’t be).
You have only eaten. You can’t be hungry.
4. The negative of must (be) is mustn’t (be).
You mustn’t be noisy outside a hospital.
5. We express deduction about the past with must have been.
You haven’t eaten for hours. You must have been hungry.
6. The negative of had to is didn’t have to.
It was a holiday yesterday, so I didn’t have to be at work.
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