Chinese phrase
你这样做是因为〜吗？ nǐ zhè yàng zuò shì yīn wèi 〜 ma
Meaning
Are you doing this because ___?
When to use it
This asks if someone is acting for a given reason. It is common in everyday conversation and usually has a neutral, curious tone.
Example dialogue
你这样做是因为外面下雨吗？ nǐ zhè yàng zuò shì yīn wèi wài miàn xià yǔ ma
Are you doing this because it is raining outside?
对，我不想被雨淋湿。 duì wǒ bù xiǎng bèi yǔ lín shī
Yes, I do not want to get wet in the rain.