Question

don't need to、needn't、need to be done、need doing分

don't need to、needn't、need to be done、need doing分别是什么意思？

Answer 1

1.首先need to do 是需要做........,need 为实义动词。
don't need to 就是上面的否定形式。不需要做......这里面need 还是实义动词
2.needn't为情态动词。后面接实义动词原型。即needn't do ....意思是“不需要做....”
3.need to be done ： 某物需要被做。。。
例：The car need to be repaired. 汽车需要（被）修理（汽车和动作修理之间是被动关系不是主动关系）
4.need doing主动表被动的用法 =need to be done.
即 The car need repairing.=The car need to be repaired.

Answer 2

need 是需要的意思

Answer 3

没有必要 不需要 需要做什么