haven't 是用在完成时中的否定,doesn't / don't have 是用在一般否定句中的否定.例如：I have finished my work.（完成时） 否定句就是：I haven't finished my work.I have money.(一般时态) 否定句就是：I don't have money.
have的否定haven't和doesn't have有什么不同? have的否定haven't和doesn't hav
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