Example Sentences#

1. 한 사람은 저녁 식사에 너무 오랜 시간을 보내고, 다른 사람은 감기에 걸려 계속 코를 풀기 때문입니다.¹
   One because he spends too much time at dinner, and another because he has a cold and keeps on blowing his nose.

   • 때문 is a dependent noun meaning ‘cause’ or ‘reason’, used after a noun or a nominalized clause to express the cause or reason for something.
   • 이다 is the verb ‘to be’.
   • ㅂ니다 is a formal polite ending used in declarative sentences.

2. 그들은 여자를 만지지 않기로 다짐했기 때문이다.²
   They had promised not to touch a woman.

   • 때문 is a dependent noun meaning ‘cause’ or ‘reason’, used after a noun or a nominalized clause to express the cause or reason for something.
   • 이다 is the verb ‘to be’.
   • -다 is the plain declarative ending used to state facts or describe events in an impersonal, neutral tone without addressing a specific listener, found in objective narration (stories, articles, diaries), self-directed speech, announcements, and emphatic exclamations.