Grammar
-조차 없다
Not even
Form
Last Name + 조차 + negative predicate — “not even ... »
Function
-조차 없다 excludes even the element one might at least have expected: “There isn’t even… ».
Why this form?
-도 없다 means “there isn’t any either” or “not even…” depending on the context
(ex : 물도 없어요. — There's no water either.)
-조차 없다 emphasizes even more strongly the surprising absence.
-마저 may refer to the last remaining element.
Examples
나와 같은 병실에 있는 환자조차 없다. — There isn't even a patient in the same room as me.
이름조차 기억나지 않아요. — I don't even remember his name.