이 완전히

… completely

→ 이
phrase Rare #16,982
… completely 이 is a subject marker attached to the preceding noun; the phrase itself is a fragment whose translation depends on what follows.
KO: 세탁이 완전히 끝났어요.
EN: The laundry is completely finished.

근데 아쉽게도 세탁이 완전히 되진 않았어요

Unfortunately, it didn’t come out completely clean in the wash.

— 토니 에드만 (2016)