You haven't seen my new computer yet.

你还没看过我的新电脑呢。

Hasan, you haven't got any proof that he damaged it.

哈桑，你没有任何证据证明是他弄坏的。

You may find it difficult to use chopsticks if you haven't tried before.

如果你以前没用过筷子，可能会觉得难用。

Don't skite about things you haven't done.

不要吹牛你没有做过的事情。

You haven't answered my question.

你没有回答我的问题。

Long time no see, you haven't changed a bit.

很久不见，你看起来一点都没变。

If you haven't received the security code, please check your spam folder.

如果你没有收到验证码，请检查你的垃圾邮件文件夹。

It's important not to have preconceived notions about people you haven't met.

不要对你未见过的人有预先形成的看法是很重要的。

If you haven't opened your watermelons, then there's no need to put them in your fridge.

如果你还没有打开你的西瓜，那么就没有必要把它们放在你的冰箱里。

You haven't answered my question.

你还没回答我的问题。