Why

виса

visa

((interrogative) for what reason)

захуэй

zahuey

((interrogative) for what reason)

因何

in-hô

((interrogative) for what reason)

是按怎

sī-án-chóaⁿ, sī-án-nóa, sī-án-ná

((interrogative) for what reason)

為何 /为何

zh-min-nan

((interrogative) for what reason)

為啥物 /为啥物

ūi-siáⁿ-mih, ūi-siáⁿ-mi̍h, ūi-siáⁿ-mí

((interrogative) for what reason)

為甚物 /為什物 /为什物

ūi-sím-mi̍h

((interrogative) for what reason)

物代

mih-tāi

((interrogative) for what reason)