Modal Verbs in English Grammar With Examples | What Are Modals | English Grammar Lesson | ChetChat

Summary

Key Points

• Modal verbs are a type of helping verb that, when used with a main verb, convey additional meanings such as possibility, ability, obligation, permission, advice, or speculation. 1:15
• There are nine core modal verbs (can, could, shall, should, will, would, may, might, must) which always require a main verb and are followed by its base form (infinitive without "to"). 2:09
• Modal verbs are never conjugated, meaning their form does not change based on tense or pronouns, and they do not use additional auxiliary verbs like "do" in negative or interrogative forms. 2:54
• Many modal verbs, including "must," "shall," "will," "should," "can," "could," "may," and "might," are used to express varying degrees of possibility or probability, with "must" indicating high likelihood and "might" indicating lower chances. 9:42
• "Can" and "could" are primarily used to express ability, with "can" for the present and "could" for the past, while their negative forms indicate a lack of ability or near impossibility. 10:19
• Modal verbs like "must," "should," "might," "could," and "can't" are also employed for deduction or speculation, allowing for calculated guesses based on evidence or strong unlikelihood. 11:47
• For giving advice, suggestions, or recommendations, "must" and "should" offer strong guidance, while "could" provides options, and "may" or "might" can be used for formal suggestions. 12:35
• "Can," "could," and "may" are commonly used for giving or asking for permission, with "can" being informal, "may" formal, and "could" polite, while "will" and "would" are used for requests. 15:39
• "Must," "should," and "have to" express obligation, with "must" for internal obligation and "have to" for external obligation, while "must not" and "should not" convey strong prohibition. 17:32
• In hypothetical or conditional statements, "could," "would," and "might" are used to express situations dependent on a condition, or to make uncertain and tentative statements. 19:48