所以 (suǒyǐ) — so, therefore, that is why

HSK 2 | conjunction | therefore, so, that is why (result connector)

所以 (suǒyǐ)

A conjunction that introduces a result or conclusion. It is almost always paired with 因为 (yīnwèi, because) in the pattern 因为…所以… meaning "because... therefore..." Either part may be omitted in conversation.

Meanings

  1. [conj] So, therefore, that is why (introducing a result or conclusion).

Example Sentences

因为下雨,所以我没出去。 Yīnwèi xià yǔ, suǒyǐ wǒ méi chūqù. Because it was raining, I did not go out.

他生病了,所以没来上课。 Tā shēng bìng le, suǒyǐ méi lái shàngkè. He was sick, so he did not come to class.

这里很安静,所以我喜欢在这里学习。 Zhèlǐ hěn ānjìng, suǒyǐ wǒ xǐhuan zài zhèlǐ xuéxí. It is very quiet here, so I like to study here.

我忘带钱包了,所以不能买。 Wǒ wàng dài qiánbāo le, suǒyǐ bù néng mǎi. I forgot my wallet, so I cannot buy it.

Collocations

Collocation Meaning
因为…所以… because ... therefore ...
所以说 that is why, so one can say
就所以 (informal) so that is why
所以才… that is precisely why ...
不所以 (not standard; avoid)

Memory Hook

所 means "place/reason" and 以 means "by means of": the reason leads you to the conclusion, 所以.