The verb need has two sets of forms: those of a 'modal auxiliary verb', and those of an 'ordinary verb'. As a modal verb need has no �s on the third person singular, no infinitives and participles; it combines with a bare infinitive; questions and negatives are made without do.  

Patterns. Read and memorize! 

Affirmative	Interrogative	Negative
I need hardly go there.	Need I mention these words?	I needn�t be afraid.
She need hardly go there	Need she mention these words?	She needn�t be afraid.
He need hardly go there.	Need he mention these words?	He needn�t be afraid.
We need hardly go there.	Need we mention these words?	We needn�t be afraid.
You need hardly go there.	Need you mention these words?	You needn�t be afraid.
They need hardly go there.	Need they mention these words?	They needn�t be afraid.

Note 1: - The modal verb 'need' has only one tense form � the present.

Note 2: � 'Need' is mostly used in negative and interrogative sentences, and in sentences which express doubt or negative ideas.

Note 3: � There is a contracted negative needn�t .