The conjunction 故
We use the conjunction 故 
in a compound sentence to express an effect or a result.
The first part of the compound sentence refers to the cause behind the result/effect. The second part of the sentence, which starts after the conjunction 故, refers to the result/effect.
in a compound sentence to express an effect or a result.
The first part of the compound sentence refers to the cause behind the result/effect. The second part of the sentence, which starts after the conjunction 故, refers to the result/effect. Pay attention
We should state a comma before 故.
Examples
他已经适应了国外的生活，故不打算再回国
He has already adapted to life abroad, so he does not plan to return to the country
tā yǐjīng shìyìng le guówài de shēnghuó, gù bù dǎsuàn zài huíguó
途中遇事耽搁，故未能按期到达
I was delayed on the way, so I could not arrive on time
túzhōng yù shì dāngē, gù wèi néng ànqí dàodá
We usually use 故 in a structure with 因 , which indicates the reason something happens.
, which indicates the reason something happens.Scheme
因
reason
故
result
Examples
因有信心，故能战胜
We had faith, so were able to win
yīn yǒu xìnxīn, gù néng zhànshèng
因不是体面的事情，故不敢说出来
Because it’s not a decent thing to say, I won’t dare to say it
yīn bú shì tǐmiàn de shìqíng, gù bù gǎn shuōchūlái
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