This is the 19300th most frequent Korean word.
않았습니까
"Didn't you?"
Here, '않았습니까' is used in formal speech to indicate a polite interrogative tone questioning an action not being done in the past.
이 책을 읽지 않았습니까?
Did you not read this book?
In this case, '않았습니까' is inquiring about a past action's absence, politely addressing the listener.
영화를 보지 않았습니까?
Didn't you watch the movie?
The phrase '않았습니까' is utilized here to question whether a particular commitment was not fulfilled in a formal and polite manner.