내가 막을

I will stop

→ 나
phrase Rare #32,523
I will stop 내가 means “I” as the subject, and 막을 means “will stop” or “will block.” 막을 often comes before a noun or forms part of a future-tense expression.
KO: 내가 막을 테니까 걱정하지 마.
EN: I’ll stop it, so don’t worry.