3 sentences for 不行 (bù​xíng — unacceptable)

1. 只给这么点钱肯定不行。

   zhǐ gěi zhè​me diǎn qián kěn​dìng bù​xíng.

   This small amount of money definitely won't be enough.

   Source: Dong Chinese Dictionary

2. 不行，我们今晚就走。

   bù​xíng, wǒ​men jīn​wǎn jiù zǒu.

   No, we are leaving tonight.

   Source: OpenSubtitles

3. 不行啊，我很忙。

   bù​xíng a, wǒ hěn máng.

   I can't, I'm very busy.

   Source: OpenSubtitles