Modal verbs. Basic uses.

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I can ride a bike.

• obligation

• prohibition

• advice

• ability

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You shouldn't be late for class

• obligation

• prohibition

• advice

• ability

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Kate must go to the doctor.

• obligation

• prohibition

• advice

• ability

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Drivers mustn't park here.

• obligation

• prohibition

• advice

• ability

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I could climb to trees when I was eight years old

• obligation

• prohibition

• advice

• ability

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Passengers have to wear seat belts when the car is moving.

• obligation

• prohibition

• advice

• ability

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May I help you?

• obligation

• permission

• advice

• ability

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Annie and Sylvia must be twins

• obligation

• permission

• advice

• probability

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These socks can't be a pair.

• obligation

• permission

• advice

• probability

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You can't eat the whole cake.

• obligation

• permission

• advice

• prohibition