Modal verbs are used to indicate ability, obligation, possibility, prohibition, necessity, advice, certainty, assumption, and advisability. The most common modal verbs are can, could, must, may, might, should, shall, will, and would. For example, can and could express ability, must expresses obligation and necessity, can't and mustn't express prohibition, may, might, can, and could express permission, and should expresses advice. Modal verbs do not conjugate or require auxiliary verbs.

1. MODAL VERBS
BY STHEPHANIE CARDONA

2. MODALVERBS
amodalverbis atypeofauxiliary verbthatisusetoindicate:
• Ability
• Obligation
• Possibility
• Prohibition
• Necessity
• Advice
• Certainty
• Assumption
• Advisability

3. Modal verbs
These are the most commonmodal verbs:
Can
Could
Must
May
Might
Should
Shall
Will
would

4. Forexample
We use can and could for to express
ability.

5. We use must to express to express
obligation, necessity duty and assumptions.

6. we use can’t and mustn´t for prohibition.

7. We use may/ might/ can/ could/ may to ask for
permission.

8. We use should for advices.

9. Weusewill,would andcouldforarequest.
weusewillpromisesorvoluntaryactions that
takeplaceinthefutureorpredictionsabout
thefuture.

10. Howdoweusemodals?
Example: Jason can play the piano.
They don’t accept conjugation
They don’t need other auxiliary verb

11. Form :
• There isn´t “s” and “does “ in third person.
she can run very fast / she cans run very fast
• We don’t need infinitive or ing forms.
she should do exercise / she should to do exercise