것이 있다

there is something; there are things

→ 것
phrase Uncommon #8,906
there is something; there are things Used to express that something exists or that there is something to do, say, or consider. It is a compositional form: 것 means “thing,” 이 is the subject marker, and 있다 means “to exist” or “to have.”
KO: 나중에 톰에 대해 말해줄 것이 있다.
EN: There is something I will tell you about Tom later.

나중에 에 대해 말해줄 것이 있다.

I have something to tell you about Tom later.

필요한 것이 있다

There is something I need.

— RRR: 라이즈 로어 리볼트 (2022)

드와넬, 내일까지 것이 있다

Dwanell, there’s something you need to finish by tomorrow.

— 400번의 구타 (1959)