사 왔는데

bought and brought back, but

→ 사다

phrase Uncommon #14,636

bought and brought back, but 사 왔는데 combines 사다 (to buy), 오다 (to come), and 는데, which often sets up a contrast or gives context for what follows.

KO: 빵을 사 왔는데 아무도 안 먹었어요.

EN: I bought and brought back some bread, but nobody ate it.