MODAL VERBS

Are auxiliary verbs,  accompanying always with a main verbs.
There are ten English modal verbs:

• CAN: Used for possibility or capability.

          Example: Can you help me?   

• COULD: Used for possibility or capability in past.

          Example: I could swim when i was five years old.

• SHOULD: Used fro advice.

          Example: I should smile.

• WOULD: With the Word "like” is preference.

         Example: Would like you the chocolate ice cream?

• MUST: Used for obligation or supposition. 

         Example: You must come to school.

• MUSTN’T: Used for prihibition.

          Example: You mustn’t eat at the class room.

• MAY: Used for actions in the future or replace to verb “can”.

          Example: May i see your driver license?

• MIGHT
• SHALL
• WILL
• OUGHT TO