그렸던

In a sentence

• 어렸을 때 그렸던 그림은 아직도 기억나요.

  I still remember the drawing I made when I was young.

  In this sentence, '그렸던' is used as a past modifier for '그림', indicating a drawing that was made in the past.

• 그렸던 노트에 모든 계획이 남아있어요.

  All my plans are left in the notebook where I sketched.

  Here, '그렸던' modifies '노트', specifying a notebook where drawing actions took place previously.

• 그렸던 캐릭터가 이번 프로젝트의 중심이 되었어요.

  The character I designed became the centerpiece of this project.

  In this context, '그렸던' is used to specify the character which was designed before and is central to the current project.