A verb is the part of speech that expresses action, condition, or being. Verbs change form to indicate person, number, tense, voice, and mood. The main verb of a sentence is often preceded by one or more auxiliary or helping verbs, which together form a complete verb. Auxiliary verbs include forms of “have” (has, have, had), “do” (does, do, did), and “be” (be, am, is, are, was, were, being, been) as well as the nine modal auxiliary verbs can, could, will, would, shall, should, may, might, and must. Note that ought to is often added to the list of modal auxiliary verbs. Modal verbs are those helping verbs, which express the ‘mode’ or ‘manner’ of the actions indicated by the main verbs. They express modes such as ability, possibility, probability, permission, obligation, etc. Use and functions modal verbs are important get some specific highlights. Use “shall” • To show intention We shall overcome. • To make a polite or informal request Shall I open it for you? Use “shoul