Korean phrase
~ 나타날 때까지 얼마나 걸려요? ~ na ta nal ttae kka ji eol ma na keol lyeo yo
Meaning
How long does it take for ___ to appear?
When to use it
This asks how long it takes for something to appear. It is a polite way to ask when an effect or change will become noticeable.
Example dialogue
이 약은 효과가 나타날 때까지 얼마나 걸려요? i ya geun hyo gwa ga na ta nal ttae kka ji eol ma na keol lyeo yo
How long does it take for this medicine to take effect?
보통 일주일 정도면 효과를 느낄 거예요. po tong il ju il cheong do myeon hyo gwa reul neu kkil kkeo ye yo
It usually takes about a week to feel the effect.