-(으)ㄹ걸 (그랬다)

Meaning

1. 1

   (informal addressee-lowering) A sentence-final ending used to indicate a guess or assumption.

   (두루낮춤으로) 미루어 짐작하거나 추측함을 나타내는 종결 어미.

2. 2

   (informal addressee-lowering) A sentence-final ending used to indicate a small sense of remorse for or regret about something.

   (두루낮춤으로) 어떤 일에 대해 가벼운 뉘우침이나 아쉬움을 나타내는 종결 어미.

Example sentences

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• 나는 네 마음대로 안 될걸.

  I won't go the way you want, you know.

• 주사가 많이는 안 아플걸.

  The shot probably won't hurt much.

• 미국도 지금쯤이면 꽤 추울걸.

  It's probably pretty cold in America by now too.

• 내가 남자라도 예쁜 지수를 택할걸.

  If I were a guy, I'd probably choose pretty Jisu too.

• 승규가 민준이보다 생일이 더 빠를걸?

  I think Seunggyu's birthday is earlier than Minjun's, isn't it?

• 네가 충고했다가 친구한테 괜히 미움만 살걸?

  If you give advice, you might just end up making your friend hate you, you know.