Breakdown of munjega saenggimyeon baro allyeo juseyo.
Questions & Answers about munjega saenggimyeon baro allyeo juseyo.
문제가 uses the subject marker 가 because the verb 생기다 means to arise / to occur. In other words, the problem is the thing that comes up.
- 문제가 생기다 = a problem occurs
- 문제를 해결하다 = solve a problem
So 문제를 생기다 is not correct, because 생기다 does not take a direct object here.
As for 문제는, that would mark problem as the topic and often adds contrast or emphasis. In this sentence, 문제가 is the most natural neutral choice.
Here, 생기다 means to arise, to occur, or to come up.
It is a very common verb with things like:
- 문제가 생기다 = a problem arises
- 기회가 생기다 = an opportunity comes up
- 변화가 생기다 = a change occurs
So this sentence is using a very natural Korean expression: 문제가 생기면 = if a problem comes up.