What is modals?

Modals are a type of auxiliary verbs used to express the grammatical mood of a verb. They express a range of attitudes such as obligation, permission, possibility, probability, ability, request, and advice. The most common modals in English are can, could, may, might, must, shall, should, will, and would.

Modals are different from regular verbs in that they do not have different forms for different subjects or tenses. They are always followed by a base form of the verb (also known as the infinitive). Modals also have some specific rules regarding their use, such as the inability to use them in the past tense and the prohibition of using them together in a sentence.

Overall, modals are an essential part of the English language as they add nuance and subtlety to what we say and help us express our intentions and meaning more accurately.