jan1 mat1 si6因乜事

Jyutpingjan1 mat1 si6
Yaleyān māt sih

Definition

Why; for what reason; how come.

colloquialcommunication

How it's used

This phrase is a slightly more formal or emphatic way of asking why compared to the ubiquitous 點解. It carries a sense of seeking a specific justification or cause for an event, often implying that the situation is unexpected or requires explanation. While it works in casual conversation, it is frequently used when someone is genuinely puzzled or demanding an account for an action.

Common phrases

Common mistake

Learners often confuse this with 點解, but using it too frequently can make your speech sound overly inquisitive or slightly aggressive. It is better to stick to 點解 for routine questions and reserve this for when you are truly seeking a reason behind a specific, unusual occurrence.

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