hadn't 翻译与用法详解
基本释义
hadn't 是 had not 的缩写形式,表示“没有”或“未曾”,通常用于过去完成时(Past Perfect Tense)。
中文翻译
- hadn't = 没有(过去完成时)
- 例句:I hadn't seen him before. → 我以前没见过他。
语法结构
过去完成时表示在过去某一时间或动作之前已经完成的动作,结构为:
主语 + had + 过去分词
否定形式为:主语 + had not (hadn't) + 过去分词
常见例句
- She
hadn't finishedher homework when I called.(我打电话时她还没完成作业。) - They
hadn't meteach other until last year.(他们直到去年才见面。) - We
hadn't realizedthe mistake until it was too late.(我们直到为时已晚才意识到错误。)
注意事项
hadn't 仅用于过去完成时,不能用于一般过去时或其他时态。在正式写作中,有时会避免使用缩写形式,而写成 had not。