건 사실

the fact that; it is true that

→ 것+은
phrase Rare #32,430
the fact that; it is true that 건 is a shortened form of 것은. The expression commonly appears in 건 사실이다 (it is true that) or 건 사실이 아니다 (it is not true that).
KO: 아뇨, 결혼한 건 사실이에요.
EN: No, it’s true that I’m married.