Modal Verbs: must - should - have to

This modal verb is used to express obligation and necessity (speaker's feelings).

• should

• have to

• must

• can

This modal verb is used to give and ask for advice.

• should

• have to

• must

• can

This modal verb is used to express lack of necessity or obligation.

• shouldn't

• don't have to / doesn't have to

• mustn't

• cannot

What type of sentence is this:

"You should go to the doctor if you don't feel well."

• obligation

• lack of obligation

• advice

• ability

What type of sentence is this:

"She must be careful with other people's feelings."

• ability

• lack of obligation or necessity

• advice

• obligation or necessity (speaker's feeling)

What type of sentence is this:

"Lisa doesn't have to come to the party if she doesn't want to."

• ability

• lack of obligation or necessity

• advice

• obligation or necessity (speaker's feeling)

Fill in with: should - should't - don't have to - doesn't have to - must - mustn't

"Do you think I ____________ go to the party? Do you think it is a good idea?"

Fill in with: should - should't - don't have to - doesn't have to - must - mustn't

"We _______ practice English every day. It is necessary.

Fill in with: should - should't - don't have to - doesn't have to - must - mustn't

"You _______ miss so many classes. It is not a good idea."

Fill in with: should - should't - don't have to - doesn't have to - must - mustn't

"We _______ be late for lessons. It is the rule."