Final answer:
Obligation definition, modal verbs, and their importance in English
Explanation:
Obligation refers to a duty or commitment to do something. In expressing obligation, modal verbs such as 'must,' 'should,' 'ought to,' and 'have to' are commonly used.
We need to use modals of obligation to convey requirements, expectations, or recommendations in a more polite or nuanced manner, adding shades of meaning to statements.
Understanding and using modals of obligation help in expressing various degrees of necessity and responsibility effectively in English communication.
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