This is the 9668th most frequent Korean word.
계획했던
"Planned" or "had planned."
Here, "계획했던" describes the trip planned previously, indicating an action completed in the past.
저는 작년에 계획했던 여행을 드디어 떠나게 되었습니다.
I finally embarked on the trip I had planned last year.
The word "계획했던" refers to the task agreed upon in the past, reflecting a prior intention or plan.
우리가 계획했던 일이 예상보다 더 어려웠습니다.
The task we had planned was more difficult than expected.
"계획했던" outlines the adherence of actions to the past plans or preparations made by someone.