Modal verbs are used to express meanings related to ability, permission, possibility, necessity, and willingness. Some common modal verbs include can, could, may, might, must, shall, should, will, would, and have to/have got to. Each modal verb has specific meanings and uses related to expressing ability, permission, requests, offers, suggestions, necessity, possibility, certainty, intention, advice, and conditional statements. Modal verbs add nuance and shades of meaning to express abilities, permissions, possibilities, necessities, intentions and other concepts in both the present and past tenses.

1. Modal Verbs<br />Modal verbs give a degree of certainty to the action performed.<br />CAN

2. Ability – to be able to

3. Can you drive?

4. She can able to speak four languages.

5. Permission – to be allowed to.