he didn't used to
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used to
固定词组
used to意为“过去常常”, 暗指现在已经不存在的动作或状态, 后接动词原形。
1. 否定句
used to的否定式通常为didn’t use to。如：
She didn’t use to have long hair.
2. 一般疑问句
含有used to的句子变为一般疑问句时, 可用“助动词Did+主语+use to do sth. ?”结构。肯定回答用Yes, sb. did；否定回答用No, sb. didn’t。如：
—Did you use to play the piano? —Yes, I did. /No, I didn’t.
3. 特殊疑问句
含有used to的特殊疑问句的结构为“疑问词+助动词did+主语+use to do...?”。如：
—What did you use to do? —I used to collect stamps.
4. 反意疑问句
如果陈述部分含有used to, 附加疑问部分通常使用助动词did来引导。如：
The house used to be a shop, didn’t it?
He didn't get enough sleep
他没有得到充足睡眠
例如：I used to smoke.
I didn't often smoke before/in the past
be used to sth习惯了某物
be used to doing sth 习惯了做某事
used to do sth 过去常常做某事
be used to do sth被用来做某事
use to有三种用法，
be used to被用来做……
used to do过去常常作某事
be used to doing习惯于做
所以可知didn't used to应该存在于used to do形式的否定中。
恩。。。以上是查到的资料。但个人认为，不存在。
徐高天蟾： He usedn't to to do sports outsiade before 或 He wouldn't do sports outsiade before
洪雅县13426224432： 英语根据提示,用used to 和didn't use to 写句子.3 - 6题,谢谢,急急急!!! - ？
徐高天蟾： 3 He used to go to bed early. 4 He didn't use to go out in the evening. 5 He used to run three miles every morning. 6 He didn't use to spend a lot of money.
洪雅县13426224432： He used to get up late in the morning 改为否定句 - ？
徐高天蟾： He didn't used to get up late in the morning.
洪雅县13426224432： used to的反意疑问句,否定句,一般疑问句是什么 - ？
徐高天蟾： 举个例子 He used to read books at night. He didn't use to read books at night. Did he use to read books at night? He used to read books at night, didn't he? 明白了吧
洪雅县13426224432： He used to be quiet.(改为否定句) He - --- - ---- - to be quiet. - ？
徐高天蟾： He used to be quiet.(改为否定句) He didn't use to be quiet. 助动词用did 有不会的可以再问我
洪雅县13426224432： sb used to do sth.它的否定形式是什么? - ？
徐高天蟾： 其否定形式有两种,可以用didn't也可以用not: 1, He didn't use to get up early when he was young. 2, He usedn't to get up early when he was young.3, There used to be a meeting on Monday, didn't there?4, There used to be a meeting on Monday, usedn't there?
洪雅县13426224432： heusedtobereallyshort的否定句是什么 - ？
徐高天蟾： 否定句 He didn't use to be very short********************************************************************* 祝学习进步!如果不明白,请再问;如果对你有所帮助, 请点击本页面中的“选为满意回答”按钮,谢谢! **********************************************************************
洪雅县13426224432： He used to swim in winter的疑问,否定句:He didn't use to swim in winter./Did he use to swim in winter?use没d - ？
徐高天蟾： used 是use的过去式,有助动词do表时态了,动词就要变回原型
洪雅县13426224432： He used stones to kill animals for food. 帮忙改一下 否定句. 一般疑问句 肯定回答. 问地点的.回答 - ？
徐高天蟾： 否定句:He didn't use stones to kill animals for food. 一般疑问句:Did he use stones to kill animals for food? 肯定回答:Yes,he did.问地点:Where did he use stones to kill animals for food?He used stones to kill animals for food in the forest.
