need do sth ,有这种用法吗，此时need 不是情态动词吗，我觉得可以有这种用法 need to do sth和need do sth 有什么...

need\u4e0d\u662f\u60c5\u6001\u52a8\u8bcd\u5417\uff1f\u4e3a\u4ec0\u4e48\u6709need to\u7684\u7528\u6cd5

need to do\u662fneed\u4f5c\u4e3a\u52a8\u8bcd\u4f7f\u7528\u7684\uff0c\u6240\u4ee5\u7528\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\u3002jingRUI(MIsssss GU

need do sth. \u4e2d\u7684need\u662f\u60c5\u6001\u52a8\u8bcd\uff0c\u540e\u9762\u8ddf\u52a8\u8bcd\u539f\u5f62\uff1bneed to do sth.\u4e2d\u4e00\u822c\u662f\u5b9e\u610f\u52a8\u8bcd\uff0c\x0d\x0a\x0d\x0aneed\u7684\u7528\u6cd5\u8bb2\u89e3\uff0c\u4f9b\u53c2\u8003\uff1a\x0d\x0a\u4e00\u3001\u4f5c\u60c5\u6001\u52a8\u8bcd\x0d\x0a1\uff0eneed\u4f5c\u60c5\u6001\u52a8\u8bcd\u65e0\u4eba\u79f0\u6216\u6570\u7684\u53d8\u5316\uff0c \u540e\u63a5\u52a8\u8bcd\u539f\u5f62\uff0c\u591a\u7528\u4e8e\u5426\u5b9a\u53e5\u548c\u7591\u95ee\u53e5\u4e2d\u3002\u5982\uff1aYou needn't worry.\u4f60\u4e0d\u5fc5\u62c5\u5fc3\u3002\x0d\x0a2\uff0e\u7531need\u5f15\u51fa\u7684\u4e00\u822c\u7591\u95ee\u53e5\uff0c\u80af\u5b9a\u56de\u7b54\u5e38\u7528must\u6216have to;\u5426\u5b9a\u7b54\u8bed\u5e38\u7528needn't. \u5982\uff1a\x0d\x0a\u2014Need I answer the question? \u6211\u9700\u8981\u56de\u7b54\u90a3\u4e2a\u95ee\u9898\u5417\uff1f\x0d\x0a\u2014Yes, you must. /Yes, you have to.\u662f\u7684\uff0c\u4f60\u5fc5\u987b\u56de\u7b54\u3002/\u662f\u7684\uff0c\u4f60\u5f97\u56de\u7b54\u3002/No, you needn't.\u4e0d\uff0c\u4e0d\u5fc5\u4e86\u3002\x0d\x0a3\uff0e\u7531must\u5f15\u51fa\u7684\u4e00\u822c\u7591\u95ee\u53e5\uff0c\u80af\u5b9a\u56de\u7b54\u7528must,\u5426\u5b9a\u7b54\u8bed\u7528needn't\u6216don't have to\u3002\u5982\uff1a\x0d\x0a\u2014Must I do the work now? \u6211\u5fc5\u987b\u73b0\u5728\u5e72\u8fd9\u4e2a\u6d3b\u5417\uff1f\x0d\x0a\u2014Yes, you must /have to.\u662f\u7684\uff0c\u4f60\u5fc5\u987b\u505a\u3002/No, you needn't /don't have to. \u4e0d\uff0c\u4f60\u73b0\u5728\u4e0d\u5fc5\u505a\u3002\x0d\x0a\u4e8c\u3001\u4f5c\u884c\u4e3a\u52a8\u8bcd\x0d\x0aneed \u4f5c\u4e3a\u884c\u4e3a\u52a8\u8bcd\u6709\u4eba\u79f0\u548c\u6570\u7684\u53d8\u5316\uff0c \u540e\u9762\u53ef\u63a5\u540d\u8bcd\u3001\u4ee3\u8bcd\u3001\u52a8\u540d\u8bcd\u53ca\u5e26to \u7684\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\uff1b\u53ef\u7528\u4e8e\u80af\u5b9a\u53e5\u3001\u7591\u95ee\u53e5\u548c\u5426\u5b9a\u53e5\u4e2d\uff0c\u5982\uff1a\x0d\x0aShe needs help.\u5979\u9700\u8981\u5e2e\u52a9\u3002\x0d\x0aI don't need to see the doctor.\u6211\u4e0d\u9700\u8981\u770b\u75c5\u3002\x0d\x0a\u2014Do you need to go at once? \u4f60\u9700\u8981\u9a6c\u4e0a\u8d70\u5417\uff1f\x0d\x0a\u2014Yes, I do.\u662f\u7684\uff0c\u6211\u5f97\u9a6c\u4e0a\u53bb\u3002\x0d\x0a\u2014No, I don't.\u4e0d\uff0c\u4e0d\u7528\u9a6c\u4e0a\u8d70\u3002\x0d\x0aneed\u7684\u7528\u6cd5\uff1a\x0d\x0a\uff081\uff09need\u8868\u793a\u201c\u9700\u8981\u201d\u3001\u201c\u5fc5\u987b\u201d\u3002\u4f5c\u4e3a\u60c5\u6001\u52a8\u8bcd\u4e3b\u8981\u7528\u4e8e\u5426\u5b9a\u53e5\u548c\u7591\u95ee\u53e5\uff0c\u65e0\u65f6\u6001\uff0c\u4eba\u79f0\u53d8\u5316\uff0c\u540e\u9762\u8ddf\u52a8\u8bcd\u539f\u5f62\u3002\u5176\u5426\u5b9a\u5f0f\u4e3a\uff1aneed not\uff08needn\u2019t\uff09\u3002\u5982\uff1a\x0d\x0aYou needn\u2019t try to explain. \u4f60\u4e0d\u9700\u8981\u89e3\u91ca\u3002\x0d\x0aNeed we stay here this evening? \u4eca\u665a\u6211\u4eec\u9700\u8981\u5728\u8fd9\u513f\u4f4f\u4e0b\u6765\u5417\uff1f

need作情态动词时不用于肯定句(本人至今还没见过)，主要用于疑问句或否定句。没有needn't to do这样的用法，need作情态动词时后面应该是动词原形。
当见到“Need I...”或needn't时你可以判断need为情态动词；当见到need to do时可以判断它是实义动词。
needn't相当于don't need to，常用来否定回答“Must I...?”，还可以与完成式连用（needn't have done），表示“本来不必这么做（但实际做了）”。

一般没有这种用法。因为need做情态动词时一般用于否定句和疑问句，肯定句用实意动词。即：needn't do sth. need to do sth.

need 和dare （敢）都有2种词性—情态动词和实意动词 情态 need do dare do 实意 do do

need 作为实意动词的时候 就这么用

扩展阅读：xbox series x ... need do something ... share sth with sb ... new balance ... submit to doing ... shopping ... certainly ... stick sth to sth ... see sb do sth ...