He need not go. 情態動詞的‘need’過去在學校沒有學過。現在知道為什麽了 He doesn't need to go. 也對，這種用法在北美很普遍。例句：
Like I said, you don't need to go to church to be a Christian.
A college student in the U.K. says he doesn't need to be educated on consent. ...
A photo of a U.K. student objecting to classes on sexual consent, sayinghe doesn't need to be taught not to rape because he's not...
COCKY Coldplay singer Chris Martin says he “doesn't need” to eat –
http://dictionary.reference.com/browse/need?s=t
He need not go.
http://dictionary.reference.com/browse/need?s=t
Best Answer: It should be 'need'.
There is a class of verbs in English called Modals. All the auxiliary verbs except be, do and have are called modals. These are: can, may, will, shall, must, need, dare. 'Ought to' and 'used to' are also included as modals.
The features of these are:
They are defective - thay don't have all the tenses. Some have only present tense and some have present and past (may/might, can/could, will/would).
They are always followed by the bare infinitive (infinitive without the 'to')
They never change form - it's I can, you can, he can and I need, you need, he need.
They all may take the contracted form of 'not' - can't, needn't, shan't, won't, etc.
Of these, 'dare' is now considered archaic and is not seen as a modal in current English. 'Shall' and 'shan't' are rapidly disappearing in the US, although holding on in the UK. 'Need' is also fading away, and now is almost always seen with a negative - 'he need not...', 'he needn't go...'
"Need' has another quirk. There is the regular verb 'need', which has all the tenses and is used just like any other verb. Somtimes it'd hard to tell which is being used.
He need go. - Modal
He needs to go. Regular verb. Note the 'to go'.
He needn't go. Modal
He doesn't need to go. Regular verb. Note the 'to' and the 'n't' on does, not need.
Both in each pair mean the same.
