haven't的否定形式是什么?
1、" haven't"是"have not"的缩写,表示现在完成时态的否定用法。
eg:I have finished my homework.
1)变否定:i have not finished my homework.
2)变疑问:have you finished your homework?
2、don't have是一般现在时的否定形式。要求主语为第一人称,“have”此处翻译成“拥有”的意思。
eg: have a cat.
1)变否定:i don't have a cat.
2)变疑问:do you have a cat?
扩展资料
1、I don' t have to talk to anybody! 我不需要和任何人商量!
2、You don' t have to knock just walk in. 你不必敲门--进来就是了.
3、There's plenty of time; we don' t have to rush. 时间还多着呢,我们不用急。
4、I haven’t touched food for a whole day. 我已经一整天没吃东西了。
5、I haven' t checked in at the hotel yet. 我还没有在旅馆办理登记手续。