Question

how can I use need as auxiliary verb
how can I use need as auxiliary verb ​

Answer 1

Answer:

When need is used as an auxiliary verb, its form remains the same whatever be the number or person of the subject.

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The auxiliary need is common in questions and negatives.

He need not ask my permission.

He need not wait any longer.

They need not make such a fuss over it.

You need not mention this to anyone else.

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Answer 2

Answer:

Need is a semi modal verb and oftentimes is with negation.

You need not go there.

Need here carries a sense of no obligation. Moreover 'need to' with a another verb carries a positive sense. In such cases it requires no DUMMY DO for question etc. Otherwise need is a normal verb.

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