注意是 didn't used to!不是didn't use to 请问这两个是不是一样呢?都可以用吧?上面的同学说的恐怕不对吧

注意是 didn't used to!不是didn't use to 请问这两个是不是一样呢?都可以用吧?上面的同学说的恐怕不对吧 是didn't used to 还是 didn't use to She didn't used to be fat .= She used to be fat .此处didn't已经是过去时了,为什么used不改成use? used to 过去常常.是过去式,可有一句话he didn't used to.存在吗/ use to do的一种否定 形式是：didn't used to和didn't use to ? There used to be some trees,______ there?是didn't 还是 wasn't啊? You used to be short 的反义疑问句是You used to be short,didn't you used not do和didn't used to do有什么区别前者是做情态动词吗? There used to be a church behind the cemetery,_____________?A.didn’t there B.used there C.usedn’t it D.didn’t it到底是didn't there还是usedn't there还是两个都行 be used to do sth.否定形式是什么?也就是说,didn't used to do 还是didn't use to do they used to come here to play,()?反义疑问句 是填usedn't they 还是 didn't they 否定形式是否有didn't used to You used to be short ,didn’t you? he used to work deep at night,____ ______?A.didn't he B.usedn't he 另外,used to 是情态动词吗? 考试一题,there used to be a park,_______? 我填wasn't there,错了,说是didn't there我不知道为什么用didn't,我的思路是there be,反义是be there的格式,哪位高手能解释下为什么是didn't而不是wasn't. You used to be really shy的反义疑问句是什么,是didn't you还是weren't you,为什么 There used to be some greet at this spot,( )? 是wasn't there 还是didn't there there used to be a big bridge near here,反意疑问是didn't there 还是wasn't there