Must & Have To
English Language: KS3, topic 3.5.6
Using Must as a Modal Verb
Modal verbs are verbs that affect other verbs in sentences. 'Must' is a modal verb used to show that something has to happen. Let's look at some examples of when 'must' is used as a modal verb...

I must post that letter

Hattie must buy popcorn

We must cook more dinners

We must not forget to feed Flossy

You must not forget your umbrella
Using Have To as a Modal Verb
Model verbs are verbs that affect other verbs in sentences. 'Have to' and 'has to' are modal verbs used to show that something needs to happen. Let's look at some examples of when 'have to' or 'has to' is used as a modal verb...

I have to meet my boss

We have to go riding again soon

You have to visit Spain

You have to make an appointment

He has to cook for 300 people
Test yourself on Must & Have To
Which of these is a modal verb?
Which of these sentences contain modal verbs?
Which word is the modal verb in this sentence?
You must wear a hard hat on the construction site.What type of word is must?
You must bake your aunt a cake.Which word should go in the gap?
You ____ not feed the ducks.