Obligation and necessity

- Online booking

​- Destination

​- Book a flight

​- Search

Some text here about the topic of discussion

- Departure

- Check-out

- ​Make a reservation

- ​Apply for a visa

Match the words to make expressions.

Write a sentence using the expressions.

For obligation and necessity.

Use must and the base form to express obligation.

​

MUSTN'T is a modal verb. It works as an auxiliary.

​Must

Use have to and the base form to express necessity.

​

Use not have to and the base form to express lack of necessity.​

​

MUSTN'T is a modal verb. It works as an auxiliary.

​Have to

Use need to and the base form to express necessity.

​

Use not need to to and the base form to express lack of necessity.​

​

MUSTN'T is a modal verb. It works as an auxiliary.

​Need to

Use have got to and the base form to emphasize necessity.

​​

​

Notice that HAVE GOT TO is in Present Perfect.

​Have got to

complete the sentence using MUST, HAVE TO, or NEED TO.

On PADLET, slect a topic and write an obligation, a necessity, and something that is not necessary to do.​