잃게 되지

will end up losing

→ 잃다
phrase Rare #17,046
will end up losing 잃게 되다 means “to end up losing”; the ending 지 can give the statement a casual, matter-of-fact tone.
KO: 조심하지 않으면 중요한 걸 잃게 되지.
EN: If you’re not careful, you’ll end up losing something important.