English

Modal Verbs

Construct sentences with modal auxiliary verbs.

Subject + Modal + Base Verb

Formula Explanation

Modal verbs such as can, could, may, might, must and should are normally followed by the base verb.

Variables Explained

Modal = Auxiliary expressing ability, possibility, permission, obligation or advice.

Solved Example

Choose the correct form: He can (swim/swims).
Correct answer: He can swim.

Exam Tip

Do not add s/es to the main verb after a modal.