4 sentences

1. 我听见你扣动了扳机。

   wǒ tīng​jiàn nǐ kòu​dòng le bān​jī.

   I heard you pull the trigger.

   Source: OpenSubtitles

2. 你扣动扳机了吗？

   nǐ kòu​dòng bān​jī le ma?

   Did you pull the trigger?

   Source: OpenSubtitles

3. 我扣动了扳机。

   wǒ kòu​dòng le bān​jī.

   I pulled the trigger.

   Source: OpenSubtitles

4. 他扣动了扳机。

   tā kòu​dòng le bān​jī.

   He pulled the trigger.

   Source: Dong Chinese Dictionary