4 sentences

1. 你有找过亲生父母吗？

   nǐ yǒu zhǎo guo qīn​shēng​fù​mǔ ma?

   Have you ever looked for your biological parents?

   Source: OpenSubtitles

2. 我在寻找我的亲生父母。

   wǒ zài xún​zhǎo wǒ​de qīn​shēng​fù​mǔ.

   I'm looking for my biological parents.

   Source: OpenSubtitles

3. 我找到了亲生父母。

   wǒ zhǎo dào le qīn​shēng​fù​mǔ.

   I found my biological parents.

   Source: CCMatrix

4. 你们不是我的亲生父母是不是？

   nǐ​men bù​shì wǒ​de qīn​shēng​fù​mǔ shì​bu​shì?

   You're not my real parents, are you?

   Source: OpenSubtitles