因为 yīn wèi
“because; owing to; on account of”
preposition, conjunctionHSK 2 · 2021 list level 2Traditional 因為
新HSK等级2025 HSK 3.0 syllabus level
因为 appears in the November 2025 exam syllabus in the following numbered entry. Levels refer to the listed reading and use, not every meaning.
- Entry 475: 因为 yīnwèi — Level 2; official annotation 2 (介、连). PDF page 91
Separate from the HSK 2.0 and 2021 list labels above. Compare the three lists.
用法How to use 因为
因为 means "because". It introduces the reason for something, often in the pattern 因为 + reason, (所以 + result). In everyday speech, 所以 is often left out.
例句Example sentences
- 因为下雨，我们没去公园。yīn wèi xià yǔ, wǒ men méi qù gōng yuán.Because it was raining, we didn't go to the park.
- 他因为生病，今天没来上课。tā yīn wéi shēng bìng, jīn tiān méi lái shàng kè.He didn't come to class today because he was sick.
- 因为今天很冷，所以我穿了很多衣服。yīn wèi jīn tiān hěn lěng, suǒ yǐ wǒ chuān le hěn duō yī fu.Because it is very cold today, I wore a lot of clothes.
易混词Easily confused
因为vs所以
因为 introduces the reason; 所以 introduces the result. They often appear together as 因为…，所以…, but they are not interchangeable.