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need sth. need to do sth.的用法

2025-03-14 13:55:14

推荐回答（2个）

回答（1）：

同学你好，用法是很简单的，我来给你解释吧
need这个词是实义动词，need后面是名词就可以直接放在后面了，如果出现动词时候，有两种形式
need
to
do
和
need
doing两种结构，表示主动语态就用to
do
表示被动含义时候就用need+doing，明白了吗？

回答（2）：

need可以作情态动词也可以作普通动词。
当它是情态动词的时候，肯定形式就是need
do
sth.否定形式是needn\'t
do
sth.
当它是普通动词时候，肯定形式是need
to
do
sth.否定形式是don\'t
need
to
do
sth.
重要的是,need当情态动词时,一般不用于肯定句~
且作为must提问的否定回答
must
I
do
the
homework
no,you
needn\'t.

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