could you tell me the meaning of 큰일이네요? and when can I use this phrase?

Question

could you tell me the meaning of 큰일이네요?  and when can I use this phrase?

Answer

almost same as SHTF

Answer

When something to worry about had happened, you say 큰일이네요 to say sorry for that or to express worry for that.

eg) A: 아들이 다쳤어요. 큰일이예요. B: 그것 참 큰일이네요.
취직이 안되서 큰일이예요.
큰일났어요! 불이 났어요!