4 sentences

1. 你会吹口哨吗？

   nǐ huì chuī​kǒu​shào ma?

   Can you whistle?

   Source: Tatoeba

2. 吹口哨好难啊。

   chuī​kǒu​shào hǎo nán a.

   Whistling is hard.

   Source: OpenSubtitles

3. 别吹口哨了。

   bié chuī​kǒu​shào le.

   Do stop whistling.

   Source: OpenSubtitles

4. 你会吹口哨！

   nǐ huì chuī​kǒu​shào!

   You can whistle!

   Source: OpenSubtitles