need do与need to do区别 needn✀t do与don✀t need to do区别

2024-12-19 01:18:58
推荐回答(3个)
回答1:

don't
need
to
do
与needn't
do
有什么区别?
有一定的区别:
don't
need
to
do
这里need是个行为动词,而needn't中的need是情态动词;
needn't应该相当于don't
have
to
更好
还有needn't
是否只能用于一般现在时?
是的,一般只用于一般现在时,但在宾语从句中也可表示过去或将来(不太常见)。

回答2:

用法和can一样
need
to
do与don'need
do和
needn't
do中的need
都是情态动词;t
need
to
do中的need
都是行为动词

回答3:

need
do
情态动词后面加动词原形
need
to
do
实义动词
后面加to
do
need
do
有必要做某事
needn't
do
没必要做某事
need
to
do
需要做某事
don't
need
to
do
不需要某事
need
somebody
do
某人有必要某事