칼이

a knife

→ 칼
phrase Rare #21,988
a knife 칼 means “knife,” and 이 marks it as the subject of the sentence. English articles like “a” or “the” depend on context.
KO: 칼이 식탁 위에 있어요.
EN: The knife is on the table.

칼이 위에 있어요!

The knife is up there!

— 다이 하드 (1988)