prep., conj.
because; because of
因为
because; because of
Conjunction meaning 'because' or 'since' (因 cause + 为 for); introduces the underlying reason or explanation.
Common Usage & Traps
- 因为下雨，所以没去 — Because it rained, (I) didn't go.
- 因为太贵，所以没买 — Because it was too expensive, (I) didn't buy it.
- 因为堵车，所以迟到了 — Because there was a traffic jam, (I) was late.
- 因为他不舒服，所以请假了 — Because he didn't feel well, he asked for leave.
- 我不去，因为下雨 — I'm not going because it's raining.
- 因为喜欢，所以买了 — Because (I) liked it, (I) bought it.
-
因为我不去，所以下雨。因为下雨，所以我不去。The reason and result are flipped. Rain is the reason; your not going is the result. 因为 marks the reason, 所以 marks the result.
Do you always need 所以 after 因为?
No. 所以 is common, but 因为 can stand alone in short answers and casual speech.
Textbooks drill 因为...所以... as a matching pair. Real Chinese often drops 所以 when the result is obvious. In longer written sentences, adding 所以 makes the cause-result link clearer. A bare 因为 answer is normal, especially when someone asks why.
“Ｂ：因为我不喜欢运动，所以这两个我都不喜欢。” (B: Because I don't like sports, I don't like either of these.)
“Ｂ：因为我不喜欢运动，所以这两个我都不喜欢。” (B: Because I don't like sports, I don't like either of these.)
| Dimension | Natural | Avoid |
|---|---|---|
| Full pair | 因为下雨，所以没去。 | 因为下雨，所以。 |
| Short answer | 因为下雨。 | 因为下雨，所以。 |
| Long answer | 因为堵车，所以我迟到了。 | 因为堵车，所以。我迟到了。 |
Can 因为 come after the result, like '我不去，因为下雨'?
Yes. Chinese lets you state the result first, then add the reason with 因为.
Both orders are natural. '因为下雨，我不去' leads with the reason. '我不去，因为下雨' leads with the decision and explains it. The second order often sounds like an answer to 'Why not?' or an afterthought.
| Dimension | Natural | Avoid |
|---|---|---|
| Reason first | 因为下雨，我不去。 | 因为我不去，下雨。 |
| Result first | 我不去，因为下雨。 | 我不去，所以下雨。 |
| Explaining a choice | 我选这个，因为便宜。 | 我选这个，所以便宜。 |
When someone asks 为什么, do you answer with 因为 or 所以?
Use 因为 to give the reason. 所以 starts the result, not the answer to 为什么.
为什么 asks for a cause. 因为 answers that cause directly. 所以 means 'so' or 'therefore', so it introduces the consequence. If you answer 为什么 with 所以, you sound like you are giving a result, not a reason.
| Dimension | Natural | Avoid |
|---|---|---|
| Answering why | 因为下雨。 | 所以下雨。 |
| Giving result | 下雨了，所以我没去。 | 下雨了，因为我没去。 |
| Pairing both | 因为下雨，所以我没去。 | 所以下雨，因为我没去。 |
Appears in Stories 6 stories
Real context sentences across different daily scenarios and graded readings.
This simple HSK 2 story introduces a warm family of six. Follow Little Bao and his British wife as they raise their two green-eyed children, each with their own personality.
-
这是 因为 他们的妈妈的眼睛也是绿色的。
Follow Xiao Li as he copes with the effects of forest fires near his home in the US and reflects on environmental changes. A thoughtful story for HSK 4 learners.
-
因为 风把烟吹到城里，空气变得非常差，很多人开始咳嗽，小李也是其中一个。
Think instant noodles are unhealthy? This HSK 6 article challenges common myths and reveals surprising facts about nutrition, oil, and salt in this convenient food.
-
误会一：方便面有毒很多人想当然认为，方便面保质期很长，不会坏，原因一定是 因为 里面“有东西”，有毒！
In this dialogue, two people chat while waiting outside a cinema. You'll hear common phrases for talking about hobbies, sports, and movie preferences.
-
Ｂ： 因为 我不喜欢运动，所以这两个我都不喜欢。
Meet Gao Youpeng, a friendly Beijing coworker who welcomes the narrator with local dishes and a simple language-exchange plan. This warm HSK 2 story is perfect for first readings about work and friendship.
-
他也在中为公司工作，但是 因为 周一我来公司的时候，他去上海了，所以我没有看见他。
Ever wondered where old Beijing's tea-drinking culture has gone? Follow a visitor discovering why locals now avoid famous tea houses—and practice expressing surprise and comparisons in Chinese along the way.
-
因为 他们不喜欢现在的茶馆。
-
老北京们去茶馆，就是 因为 想喝茶，也为了跟朋友说说话什么的。
Questions & Discussion 0 questions
No questions or discussions yet. Have a question about this character/word? Be the first to ask!