고생 많았다

you went through a lot; you worked hard

→ 고생
phrase Rare #25,206
you went through a lot; you worked hard A way to acknowledge someone's effort or hardship. The subject is often omitted. This plain-style form is informal.
KO: 긴 여행 하느라 고생 많았다.
EN: You must have gone through a lot on that long trip.