Yap.Town

이 잘 안

doesn't go well

→ 이
phrase Rare #20,463
doesn't go well Usually appears before a verb, as in 잘 안 되다 or 잘 안 맞다, to indicate that something does not work, happen, or fit easily or properly. The 이 belongs to the preceding noun and is not part of the phrase itself.
KO: 요즘 일이 잘 안 풀려요.
EN: Things aren't going well at work these days.

초점이 잘 안 맞았어요

It didn’t focus properly.

— 시네마 천국 (1988)