hadn't

剑桥词典

short form of had not
（had not的缩略形式）
If you hadn't told him he would never have known . 如果你没有告诉他的话，他可能永远也不会知道。

例句

• She was disappointed that they hadn't phoned .
• Four years after he left college he still hadn't found a job .
• The examiners failed him because he hadn't answered enough questions .
• She looked as though she hadn't slept all night .
• I'd have drowned if he hadn't been there to pull me out of the river .
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