11 sentences

1. 这是我的私事，请不要过问。

   zhè shì wǒ de sī​shì, qǐng bù yào guò​wèn.

   This is my private matter; please do not inquire about it.

   Source: Dong Chinese Dictionary

2. 告诉我一些有关他的私事。

   gào​su wǒ yī​xiē yǒu​guān tā de sī​shì.

   Tell me something personal about him.

   Source: OpenSubtitles

3. 我们今天只谈公事，不谈私事。

   wǒ​men jīn​tiān zhǐ tán gōng​shì, bù tán sī​shì.

   Today we will only talk about business, not personal matters.

   Source: Dong Chinese Dictionary

4. 我们今天不谈私事，只论公事。

   wǒ​men jīn​tiān bù tán sī​shì, zhǐ lùn gōng​shì.

   We are not talking about private matters today, only official business.

   Source: Dong Chinese Dictionary

5. 这是我的私事，请你不要干预。

   zhèi shì wǒ de sī​shì, qǐng nǐ bù yào gān​yù.

   This is my private business; please do not interfere.

   Source: Dong Chinese Dictionary

6. 他觉得这件私事让他难以启齿。

   tā jué​de zhè jiàn sī​shì ràng tā nán​yǐ​qǐ​chǐ.

   He found this private matter hard to talk about.

   Source: Dong Chinese Dictionary

7. 这是人家的私事，你别在那儿多嘴。

   zhè shì rén​jia de sī​shì, nǐ bié zài nà​r duō​zuǐ.

   This is someone else's private business; don't poke your nose in.

   Source: Dong Chinese Dictionary

8. 他这次出国是为了处理一些私事。

   tā zhè cì chū​guó shì wèi le chǔ​lǐ yī​xiē sī​shì.

   He went abroad this time to handle some personal matters.

   Source: Dong Chinese Dictionary

9. 请大家先避一下，我有些私事要处理。

   qǐng dà​jiā xiān bì yī​xià, wǒ yǒu​xiē sī​shì yào chǔ​lǐ.

   Please excuse us for a moment; I have some private business to attend to.

   Source: Dong Chinese Dictionary

10. 这是我们两人的私事，不需要旁人插手。

    zhè shì wǒ​men liǎng rén de sī​shì, bù xū​yào páng​rén chā​shǒu.

    This is a private matter between the two of us; we don't need others to intervene.

    Source: Dong Chinese Dictionary

11. 直接向初次见面的人询问私事是很冒昧的。

    zhí​jiē xiàng chū​cì jiàn​miàn de rén xún​wèn sī​shì shì hěn mào​mèi de.

    It is presumptuous to ask someone you've just met about their private affairs.

    Source: Dong Chinese Dictionary