zi1 so2 ji5之所以
Jyutpingzi1 so2 ji5
Yalejī só yíh
Definition
The reason why; used to introduce a result followed by its cause.
colloquialcommunication
How it's used
This structure functions as a formal way to introduce a causal relationship, mirroring the pattern of 'the reason why... is because...'. While it is perfectly acceptable in spoken Cantonese, it carries a slightly more explanatory or analytical tone compared to simply using 因為 to start a sentence. It is most effective when you want to emphasize the logic behind a specific outcome.
Examples
The reason he is late is because of a traffic jam.
Do you know the reason why he is so angry?
Related words
Common phrases
the reason why is because
Common mistake
Learners often mistakenly add 嘅 after 之所以, but it is grammatically incorrect to say 之所以嘅. Always follow 之所以 directly with the subject of the clause.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- QuestionsFrom yes or no questions to asking who, what, where, and when. The patterns you need to ask questions naturally in Cantonese.
- ClassifiersCantonese puts a classifier between a number and a noun, and a bare classifier on its own can mean the. Learn the common ones and how to use them.
- ComparisonsHow to say bigger than, the most, the same as, and not as good as. Cantonese uses 過 where Mandarin uses 比, and that catches a lot of learners out.
