Advice, Obligation or Prohibition | Baamboozle - Baamboozle

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Re-write the sentence: It's my obligation to do my homework.

I have to do my homework.

Re-write the sentence: It's prohibited to enter here.

You mustn't enter here.

Which modal verbs or expressions do we use to talk about Obligation?

Have to and Must

What's the difference? You should see a doctor. vs You must see a doctor.

Should - Advice / Must - Strong Advice

Which modal verbs do we use to give advice?

Should, Could and Must

Complete the sentence: I think I ______ clean my bedroom.

must

Complete the sentence: You _____ clean your bedroom son!

have to

Complete the sentence: It's a hospital. You ______ smoke here!

mustn't

Complete the sentence: You ______ be seventeen to drive a car in the UK.

have to

What's the difference? I have to get up earlier tomorrow because..... vs I must get up earlier tomorrow.

Have to - external obligation / Must - internal obligation

Complete the sentence: You _____ use your mobile phone during an exam.

mustn't

What's the difference? You should buy it, it's very nice. / You must buy it now, she really needs it.

Should - Advice / Must - Strong Advice

What's the difference? You don't have to go shopping. You mustn't go shopping.

don't have to - you're not committed to the obligation / mustn't - prohibition

Re-write the sentence: It's prohibited to use a cell phone here.

You mustn't use a cell phone here

Complete the sentence: you ______ talk to her, she's your best friend.

should

Complete the sentence: You ______ show your passport or identity card to get on a plane.

have to

Re-write the sentence: It's my obligation to be at work at 8 a.m.

I have to be at work at 8 a.m.

Complete the sentence: you _____ always get enough sleep before driving a car.

should / must

What's the difference? You don't have to walk the dog. You mustn't walk this dog.

don't have to - you're not committed to the obligation / mustn't - prohibition