Here it is.^^ How did this happen? (you're arriving at a car crash scene and wondering how the accident happened) ☞ 어떻게 이런일이 생긴거지? ☞ 어떻게 이런일이 일어난거지? ☞ 어떻게 이런일이? What happened? (You hear a loud sound somewhere) ☞ 무슨일이지? ☞ 무슨일이래? What happened to you? (You see someone with blood on their shirt) ☞ 무슨일이야? ☞ 무슨일 있었어? ☞ 어떻게 된거야? What happened to your skin? (You see someone with burned skin or something) ☞ 너 피부 왜그래? ☞ 피부가 왜그래? ☞ 어쩌다 피부가 그렇게 됐어? Is that really what happened? (Asking your child, who seems to be lying) ☞ 정말 그렇게 된거야? What will happen if i press this button? ☞ 이 버튼을 누르면 어떻게 될까? ☞ 이 버튼을 누르면 무슨일이 일어날까? More examples, 1) I am sorry for what happened yesterday. 어제 일어난 일에 대해 사과드립니다. 2) What happend to your mother? 어머니께 무슨일이 있나요? 3) Tell me what happened 무슨일이 있었는지 말해봐. 4) What happened to Jake. Jake 는 어떻게 됐어? 5) Ahhh, That's what happened.(You ended up figuring out what happened) 아..그렇게 된거였구나. 6) Now I know what happened to Jake. 이젠 제이크에게 무슨일이 일어났는지 알고있어. 7) Oh, I wondered what happened. 오..난또 무슨일이라고.. (nothing to surprise because it often happens) \^o^/