Question

What is the function of model auxiliary verb - must & can ?

Answer 1

Answer:

Modal auxiliary verbs include: can, could, may, might, must, ought, shall, should, will, and would. These verbs - which never change forms the way most other verbs do - indicate possibility, capability, necessity, or willingness. To show past tense, we add 'have' and a past participle to the modal auxiliary verb

Explanation:

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