3 sentences

1. 我只是偶尔来帮帮忙。

   wǒ zhǐ​shì ǒu'ěr lái bāng bang​máng.

   I just come in occasionally to help out.

   Source: OpenSubtitles

2. 有人能帮帮忙吗？

   yǒu rén néng bāng bang​máng ma?

   Can anyone help?

   Source: UM-Corpus: News

3. 我可以帮帮忙。

   wǒ kě​yǐ bāng bang​máng.

   I can help out.

   Source: OpenSubtitles