HSK 2 · VERSION 2.0#63
Cause and Effect with “yīnwèi... suǒyǐ...”
因为……所以……
How it works
This pattern shows cause and effect.
The pattern
因为 + Reason, 所以 + Result
Example sentences
因为今天下雨，所以我没去。
Because it rained today, I did not go.
因为他生病了，所以没来上课。
Because he was sick, he did not come to class.
因为我很累，所以想早点睡觉。
Because I am tired, I want to go to bed earlier.
Usage note
In spoken Chinese, sometimes 所以 can be omitted, but learners usually study the full pattern first.