a time like thisUsed with 있다 or 없다 to talk about whether something like this has ever happened or been experienced. 이런 적 있어요? means “Has this ever happened to you?” or “Have you ever experienced this?”
KO: 이렇게 늦게까지 일한 적은 있지만, 이런 적은 처음이에요.
EN: I’ve worked this late before, but I’ve never experienced anything like this.