因为...所以 yīnwèi... suǒyǐ because ... therefore Origin Definitions Defs Strokes Stroke Words Sentences Sents 因为 因為 yīnwèi conjunction because Used to introduce a clause that states a reason or cause; often used in the yīn wèi ... 所以 suǒyǐ pattern所以 suǒyǐ conjunction so therefore; as a result; frequently used in conjunction with 因为 yīnwèi to indicate cause and effect