才不是呢

Cái búshì ne.

Not really.

A．你和她吵架了！你是不是不喜欢她？

Nǐ hétā chǎojià le！Nǐ shì bushì bù xǐhuan tā？

You quarrelled with him. You don't like her, do you?

B．才不是呢。

Cáibúshìne.

Not really.

Note: Not really. It's not the reason that I quarrelled with him.

(Dong Youchen, Feng Li)