Grammar · Chapter 24
因为…所以…: because…, so…
因为 reason，所以 result
因为 is “because”, 所以 is “so”. Where one word is enough in English, Chinese often uses both: 因为他忙，所以没来. One of them alone is fine too. Answering “why?”, use 因为 only: 因为我不饿.
Examples
- 因为下雨，所以我们不去公园了。 Yīnwèi xià yǔ, suǒyǐ wǒmen bú qù gōngyuán le. Because it's raining, we won't go to the park.
- 因为他很忙，所以没来。 Yīnwèi tā hěn máng, suǒyǐ méi lái. He's very busy, so he didn't come.
- 你怎么没吃？因为我不饿。 Nǐ zěnme méi chī? Yīnwèi wǒ bú è. Why aren't you eating? Because I'm not hungry.