MODALS

1. CAN and COULD
2. MAY and MIGHT
3. WILL and WOULD
4. SHOULD
5. MUST
6. HAD BETTER
7. HAVE TO

Modals, also referred to as modal verbs or modal auxiliaries, are words such as: can, could, may, might, will, would, should, must, had better. These are helping verbs, each of which has more than one meaning that we placed before the main verbs to express: ability, possibility, necessity, certainty, make polite requests, or ask for permission, and more.