This is the 1735th most frequent Korean word.
있었는데
"있었는데" means "there was" or "had been," often used to give context or contrast in past situations.
The word '있었는데' is used to indicate the existence of a good opportunity in the past as a setting for the subsequent clause.
그날 좋은 기회가 있었는데 놓쳤어요.
There was a good opportunity that day, but I missed it.
'있었는데' conveys the past existence of time as a contrast to the current situation.
여기에 더 많은 시간이 있었는데 지금은 부족해요.
There used to be more time here, but now it's insufficient.
The word '있었는데' in this sentence introduces the existence of a past idea as a prelude to expressing inability to recall it effectively.