열렸던

열렸던

"열렸던" means "that was open" or "had been open."

Here, '열렸던' functions as an adjective indicating the state or event of the park being opened in the past.

공원이 몇 주 전에 열렸던 적이 있어요.

The park was opened a few weeks ago.

In this sentence, '열렸던' is used as part of a descriptive clause modifying '순간', referring to the specific moment the door opened.

문이 열렸던 순간이 내게 매우 놀라웠어요.

The moment the door opened was very surprising to me.

Here, '열렸던' provides additional context about the time and condition under which the opening occurred.

그곳은 사람들이 떠난 후 열렸던 상당히 아름다운 장소입니다.

That place, which opened after people left, is a quite beautiful location.