Modals of Obligation

Modals of Obligation

Modals of Obligation

have to or need to

to say someting is necessary

Modals of Obligation

have to or need to

• often no difference between them

• Have got to is same as have to (used in spoken English)

Modals of Obligation

have to

• don't use contractions (short forms) with have to
  

Modals of Obligation

must

• very strong and can be formal or official

• often used in written rules and laws

• not common in speaking
  

Modals of Obligation

must

• has no past or future form

• instead we use correct forms of have to or need to

• questions with must are very rare
  

Modals of Obligation

mustn't or can't

• to say that someting is not allowed.

• Can't is mostly used in spoken English.

• Mustn't expresses strong prohibition or that something is forbidden.

Modals of Obligation

couldn't

• for things that were not allowed in the past

Modals of Obligation

don't have to or don't need to

• when there is no obligation (it is not necessary)

Modals of Obligation

should and ought to

• to give advice and recommendations

• same in meaning

• ought to is not used in negative - use shouldn't instead

Multiple Choice

In my country, you ______ cross the road at the pedestrian crossing - it's illegal to cross anywhere else.

• have to

• need to

• must

Multiple Choice

When I lived in Moscow, I ________ leave home two hours before work because the rush hour traffic was so bad.

• had to

• needed to

• musted

Multiple Choice

______ Alex _______ wear a tie to work?

• Does Alex have to

• Does Alex need to

• Must Alex to

Multiple Choice

I'll tell you a secret, but you ______ tell anyone. I don't want anyone else to know.

• don't have to

• don't need to

• mustn't

Multiple Choice

We took plenty of money, but in the end, we _______ pay - everything was free.

• didn't have to

• didn't need to

• mustn't to

Multiple Choice

All visitors _______ report to reception

• have to

• need to

• must

Multiple Select

If you want to be there on time, you'll ______ leave here very soon.

• have to

• need to

• must

Multiple Choice

Your brother can borrow my books tonight, but he _______ forget to bring them back tomorrow. I need them for my class.

• doesn't have to

• doesn't need to

• mustn't

Multiple Select

You ______ (park) here.

• don't have to

• don't need to

• can't

• mustn't

Multiple Choice

You _______ (pay) for the bus to the shopping centre.

• don't have to

• can't

• mustn't

Multiple Select

You _______ (leave) your car unlocked. It might get stolen.

• don't have to

• can't

• mustn't

• shouldn't

Multiple Select

You ________ (use) that door - it's for emergencies only.

• don't have to

• can't

• mustn't

• shouldn't

Multiple Select

You _____ (only use) the official taxi.

• have to

• can

• must

• should

Use the modals:
can/can't
have to/don't have to
must/mustn't
need to/don't need to
should/shouldn't

Complete the rules about transport

A foreign visitor is coming to live in your country. Use the ideas in the box and your own ideas to make a list of rules and tips.

Give some advice

GIMKIT Time