- Only used conversationally among friends (NEVER in writing)
- Gives an unconfirmed assumption/supposition
- Also used to softly disagree with listener
- ONLY used when speaker is privy to the info - if both people know the same info, can't use it
- Intonation rises at the end - almost like a question
- Weaker conviction than ~(으)ㄹ 거예요
A 그 분은 게을렀을걸요.
He was prob'ly just lazy.
V 책을 읽었을걸요.
I prob'ly read that book.
N 저 큰 건물은 박물관이었을걸요.
That big building was prob'ly a museum.
A 그 영화는 너무 징그러웠을걸요.
That movie was prob'ly gross.
V 축구선수 다 아주 빨리 달렸을걸요.
All the soccer stars prob'ly ran fast.
N 혜인의 남자친구가 너무 멋있을걸요.
HyeIn's boyfriend was prob'ly pretty handsome.
A 진영 씨는 똑똑할걸요.
JinYoung is prob'ly pretty smart.
V 내 생각에 우리는 수영을 할걸요.
I think we should prob'ly go swimming.
N 드라마 배우 일걸요.
He's prob'ly a drama star.
A 김치찌개는 안 매울걸요.
The kimchi jjigae prob'ly isn't spicy.
V 여기에 앉을걸요.
You could prob'ly sit here.
N 너는 천재 일걸요.
You're prob'ly a genius.