Meio para melhoe entender os Modal Verbs.

2. Form
can cook
Modal verb + Infinitive
He can cook.

3. She can swim.
Ability
Permission
Can I read?
Note: could = past of can
She could speak 2 languages when she was 5.

4. PERMISSION
May I come in?
PROBABILITY
Look at the clouds! It may
rain.
If I finish my homework early,
I might go to the cinema
May = more probable
Might = less probable

5. Moral obligation
You should help your friends.
Necessity
You should study everyday.
Advice You look terrible. You should go to
the doctor

6. Obligation
You must be 18 to drive.
Necessity
I must make my bed in the
morning. It’s a house rule
Logical
deduction
It’s snowing outside. It must
be cold.

8. Complete with can , could , may or might.
1. My mother ___________________ cook very well.
2. Tom _______________ run very fast when he was young.
3. Take your umbrella. It _____________________ rain.
4. _______________ I use the dictionary to do the exercise?
5. My house is very small so I ___________________ move to
another one.
6. ______________________ you speak Russian fluently?
7. Teacher, ____________________, I close the window?
8. Mom, _________________ you help me with my homework

9. Complete with should or must.
1. When you travel by car you _____________________ use your seat belt.
If you don’t you’ll get fined by the police.
2. If you have a headache, you _____________________ take an aspirin.
3. The light is on in the house. They ___________________ be at home.
4. You ___________________ help your mother with the housework.
5. A. “Do you want to go to the cinema?”
B. “Ok but I ________________ finish my homework first.”
6. You _________________ put on your coat. It’s cold outside.
7. Students __________________ obey school rules.
8. He has very good marks in school. He _________________ study a lot.

10. M. Vilaranda , 2012