What are modal verbs of obligation? They include MUST and HAVE TO.

MODAL VERBS of OBLIGATION EXERCISE

by Bob Wilson at autoenglish.org

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USE

MODAL VERB

EXAMPLES

NOTES

obligation

have to

Marķa has to go to Rome

 

 

must

You must see a doctor

Must expresses more urgency than have to

 

 

She had to see a doctor

Must is only used in the present simple.

no obligation

don't have to

He doesn't have to go

“It“s your choice”

prohibition

mustn't

You mustn't insult people

 

recommendation

should

You shouldn't eat so quickly

 

 

ought to

You ought to phone her

Ought to is not used in the negative

 

Modal Verbs of Obligation Exercise

Fill the gaps.