6 sentences

1. 大爷，您请坐在这儿吧。

   dà​ye, nín qǐng​zuò zài zhè​r ba.

   Sir, please sit here.

   Source: Dong Chinese Dictionary

2. 大爷，行行好，给点零钱吧。

   dà​ye, xíng xíng​hǎo, gěi diǎn líng​qián ba.

   Sir, please be kind and give me some spare change.

   Source: Dong Chinese Dictionary

3. 邻居王大爷每天清晨都会去公园修剪花草。

   lín​jū Wáng dà​ye měi tiān qīng​chén dōu huì qù gōng​yuán xiū​jiǎn huā​cǎo.

   Every morning, my neighbor Mr. Wang goes to the park to prune the plants and flowers.

   Source: Dong Chinese Dictionary

4. 我大爷是我爸爸的亲哥哥。

   wǒ dà​ye shì wǒ bà​ba de qīn gē​ge.

   My eldest uncle is my father's older brother.

   Source: Dong Chinese Dictionary

5. 你别在我面前充大爷，没人会吃你那一套。

   nǐ bié zài wǒ miàn​qián chōng dà​yé, méi rén huì chī nǐ nà yī tào.

   Don't act all high and mighty with me; nobody is buying that.

   Source: Dong Chinese Dictionary

6. 他在家里就像个大爷，从来不伸手帮着干活。

   tā zài jiā​lǐ jiù xiàng gè dà​yé, cóng​lái bù shēn​shǒu bāng zhe gàn​huó.

   He behaves like a lord at home, never lifting a finger to help.

   Source: Dong Chinese Dictionary