이 아니었어요

was not

→ 이

phrase Rare #16,045

was not Used after a noun to say that someone or something was not that thing or was not the cause. The subject marker 이 attaches to nouns ending in a consonant.

KO: 그 사람은 선생님이 아니었어요.

EN: That person wasn’t a teacher.

책 때문이 아니었어요

It wasn't because of the book.

— 베로니카의 이중 생활 (1991)

하지만 크리스가 그들 에게 한 말은, 아, 사실이 아니었어요.

But what Chris told them—oh, it wasn’t true.

죄송해요, 진심이 아니었어요

I'm sorry, I didn't mean it.

— 좋은 친구들 (1990)

아이는 정상이 아니었어요

The child wasn't normal.

— 폭풍의 시간 (2018)

노린 건 함장님이 아니었어요.

The captain wasn’t the target.