(question particle for "yes-no" questions), final interrogative particle
Definitions (粵典–words.hk)
助詞
用喺句尾「吖」「啦」「𠺢」「喳」後面,用嚟表達強調或者確認 used at the end of an utterance for emphasis or confirmation after 吖(aa1), 啦(laa1), 𠺢(gaa1), 喳(zaa1)
你唔嚟就早講吖嗎!
你唔嚟就早讲吖吗!
nei5 m4 lei4 zau6 zou2 gong2 aa1 maa3! Why didn't you tell us earlier that you are not coming?
你係唔要啦嗎,我掉咗佢㗎喇。
你系唔要啦吗,我掉咗佢㗎喇。
nei5 hai6 m4 jiu3 laa1 maa3, ngo5 deu3 zo2 keoi5 gaa3 laa3. If you really don't need it, I will throw it away.
你又唔講,我唔知你點諗𠺢嗎!
你又唔讲,我唔知你点谂𠺢吗!
nei5 jau6 m4 gong2, ngo5 m4 zi1 nei5 dim2 nam2 gaa1 maa3! How can I know what you're thinking if you don't tell me?
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嘛
助詞、書面語
用嚟將陳述句變成問句嘅句末助詞 used at the end of a statement to form a formal yes-no question