3 sentences

1. 你永远都是我的大哥。

   nǐ yǒng​yuǎn dōu shì wǒ​de dà​gē.

   You'll always be my big brother.

   Source: OpenSubtitles

2. 我还是你的大哥。

   wǒ hái​shi nǐ de dà​gē.

   I'm still your big brother.

   Source: OpenSubtitles

3. 你应该把我当成大哥才对。

   nǐ yīng​gāi bǎ wǒ dàng chéng dà​gē cái duì.

   You should treat me like an older brother.

   Source: AI Challenger 2017