This is the 5359th most frequent Korean word.
되어있지
"되어있지" means "is done" or "is in a state of being done."
The usage '잠겨있지' indicates the state of the door not being locked, emphasizing its current state.
문이 잠겨있지 않아서 열 수 있었습니다.
The door wasn't locked, so I could open it.
Here, '연결되어있지' describes the status of the computer not being in a connected state.
컴퓨터는 제대로 연결되어있지 않았습니다.
The computer wasn't properly connected.
In this sentence, '등록되어있지' refers to the book's state of not being registered yet in the system.