그랬대

they say (someone) did that, apparently did so

→ 그렇다
그랬 past tense + 대 Reported speech (hearsay)
verb · informal, past tense Rare #29,010
they say (someone) did that, apparently did so A colloquial hearsay form, shortened from 그렇다고 해.
KO: 그 사람이 먼저 그랬대.
EN: They say that person did it first.
Conjugation of 그렇다
Quotative past
그랬다고그랬대

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)