Question

need 和 dareI need not tell you.I don't need to tell you.2句话

Answer 1

I need（情态动词） not tell you.和I don't need（实义动词） to tell you.这两句话的意思是一样的“我不需要告诉你”,只是 need 的词性不同．

She dare（情态动词） not say what she thinks.

She doesn't dare（实义动词） to say what she thinks.

这两句话的意思也是一样的”她不敢说出她所想的”