2 sentences for 是非 (shì​fēi — quarrel)

1. 他并不想被牵涉进这场是非之中。

   tā bìng bù xiǎng bèi qiān​shè jìn zhè cháng shì​fēi zhī​zhōng.

   He doesn't want to get caught up in this controversy.

   Source: Dong Chinese Dictionary

2. 在别人背后议论是非是不礼貌的行为。

   zài bié​ren bèi​hòu yì​lùn shì​fēi shì bù lǐ​mào de xíng​wéi.

   It is impolite to gossip about others behind their backs.

   Source: Dong Chinese Dictionary