Did you use to take long walks in the country? (全国高考)
标准答案把这道正误辨认题判为正确,但我认为正确的用法应当是 Did you used to...
许多语言学家对 used to 的否定形式和疑问形式做过解释。但是解释得最简捷明了的,要算 CGEL 的作者们。按他们的说法,在英国英语中采用 used not to 或 usedn't to 的结构:
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Fred used not to rise at six every morning. 弗雷德过去不在每天早晨六点钟起床。
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Fred usedn't to smoke. 弗雷德过去不吸烟。
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I usedn't to like wine, but I'm quite fond of it now. (LDCE) 过去我不喜欢喝酒,但现在我却很喜欢喝酒。
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You used to live in London, usedn't you? (Eckersley) 你过去住在伦敦,是不是?
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You usedn't to make that mistake. (Eckersley) 你过去不常犯那种错误。
而在美国英语中,甚至在英国英语中许多人喜欢使用 didn't use to(因此上面考题是正确的句子)或 didn't used to 结构:
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She didn't used to do it, did she? (Chambers) 她过去不做那种事,是不是?
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Didn't you use to live near me? (Chambers) 你过去不住在我附近吗?
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He didn't use(d) to smoke a pipe. 他过去不抽烟斗。
但是,有人认为 did...used to 是非标准用法。