need do 和 need to do 通用吗？ need do和need to do如何用？

need do\u548cneed to do\u5982\u4f55\u7528\uff1f\u4ec0\u4e48\u65f6\u5019\u7528need do

\u524d\u8005\u662f\u60c5\u6001\u52a8\u8bcd\uff0c\u5c31\u548ccan\u7684\u7528\u6cd5\u4e00\u6837\uff0c\u540e\u9762\u7528\u539f\u578b\uff0c\u4e00\u822c\u4e0d\u80fd\u76f4\u63a5\u505a\u8c13\u8bed\u3002\u5982\uff0cI need take a bath.\u6211\u9700\u8981\u6d17\u6fa1\uff0c\u8fd9\u91ccneed\u4e0d\u662f\u8c13\u8bed\uff0cneed take \u624d\u662f\u8c13\u8bed\u3002
\u540e\u8005need to \u8fd9\u91ccneed \u4e0d\u662f\u60c5\u6001\u52a8\u8bcd\u4e86\uff0c\u4ed6\u662f\u5b9e\u610f\u52a8\u8bcd\uff0c\u7b80\u5355\u8bf4\u5c31\u662f\u8fd9\u4e2a\u6709\u5177\u4f53\u610f\u601d\u7684\u52a8\u8bcd\uff0c\u5728\u53e5\u5b50\u4e2d\u76f4\u63a5\u505a\u8c13\u8bed\u3002
\u5982I need to eat something.\u8fd9\u91ccneed\u76f4\u63a5\u662f\u8c13\u8bed\u3002

need\u67092\u79cd\u8bcd\u6027
1\uff0c\u60c5\u6001\u52a8\u8bcd
\u5c31\u662f\u4f60\u8bf4\u7684need
do
2,
\u5b9e\u610f\u52a8\u8bcd
\u5c31\u662fneed
to
do
\u8fd9\u4e24\u4e2a\u90fd\u53ef\u4ee5\u7528\uff0c\u90fd\u662f\u6b63\u786e\u7684\uff0c\u6240\u4ee5\u5728\u80af\u5b9a\u53e5\u4e2d\u770b\u4e0d\u51fa\u533a\u522b
\u4e00\u822c\u505a\u9898\u662f\u4ece\u5426\u5b9a\u53e5\u4e2d\u770b\u51fa\u6765\u7684
1\uff0c
needn't
do
2,
doesn't/don't
need
to
do
\u8fd9\u4e24\u79cd\u90fd\u662f\u6b63\u786e\u7684
\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e72\u6270\u9009\u9879\uff0c\u90fd\u662f\u9519\u8bef\u7684
needn't
to
do
doesn't/don't
need
do
\u56e0\u4e3a\u5b83\u4eec\u6df7\u6dc6\u4e86\u60c5\u6001\u52a8\u8bcd\u4e0e\u5b9e\u610f\u52a8\u8bcd
needn't
\u662f\u628aneed
\u770b\u4f5c\u60c5\u6001\u52a8\u8bcd\uff0c\u540e\u9762\u5c31\u4e0d\u80fd\u518d\u7528to\u4e86
\u800cdosen't/don't\u5219\u628aneed\u770b\u4f5c\u5b9e\u610f\u52a8\u8bcd\uff0c\u800c\u540e\u9762\u52a0do\uff0c
\u53c8\u76f8\u4e92\u77db\u76fe\u3002

need do 是什么？我能想到你不需要 to 的时候，只有1. 否定形式 needn't do 2.变成问题的时候 need i ask?
实际上 needn't do 这种形式已经太老了，你只要用 dont' need to do.

need do 和need to do不通用。一般只会用need to do，表示需要做什么。

这是动词need的两种用法儿，意思都是需要做某事的意思，need do sth，need是情态动词，后面跟动词原形，need to do sth，这是实义动词的用法儿，需要去做某事，所以都是正确的。

need作为情态动词是可以的，但是一般用在否定句和疑问句，所以need Do 是不成立的

在疑问句和否定句中，need可以做情态动词也可以做实义动词，但在肯定句中只能做实意动词，所以表达不需要可以是you needn't do sth. 和 you don't need to do sth. 表达需要只能是need to do sth.

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