because I thought maybe; because I wondered ifAttaches to a verb stem to give a tentative thought or possibility as the reason for an action. The verb stem may require ㄹ or 을 before 까.
KO: ‘ㄹ까 싶어서’라는 표현을 써서 이유를 설명했어요.
EN: I used the expression “ㄹ까 싶어서” to explain my reason.