they say (someone) did that, apparently did so
우째 그랬대?
How did that happen?
— 곡성 (2016)
그랬대,
That's what I heard.
— Christmas in August (1998)
톰이 그랬대?
Tom said so?
대체 왜 그랬대?
Why on earth did you do that?
— 더 레킹 크루 (2026)