In certain contexts need and dare can be used as if they were modal auxiliaries. In such contexts they behave grammatically like can, could; shall, s hould; will, would; may, might and must: I will not go there. I need not go there.
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mrmanshubhamI also read that "As an auxiliary it is used mainly in the negative and interrogative forms with direct infinitive"Yes, that is correct. They are restricted to non-affirmative contexts (negatives, interrogatives and related constructions), but ignoring that peculiarity, modal need and dare have virtually all the auxiliary and modal p
mrmanshubhamPlease explain the question which i gave in the questionHave you bothered to read the responses provided so far?