-고서-goseo

V + -고서 (After doing..., and then...)

Meaning: After finishing the first action, the second action is performed (emphasizes sequential order).

Conjugation & Pattern

  • Verb stem (V) + -고서
  • Emphatic form: V + -고서야 (only after doing...)

Detailed Usage

An emphatic sequential form of '-고'. Both clauses must have the same subject, and the first action must be completed before the second begins.

Example Sentences

  1. 1

    저는 아침마다 조깅을 하고서 학교에 옵니다.

    Jeoneun achimmada jogingeul hagoseo hakgyoe omnida.

    Every morning I go jogging and then come to school.

  2. 2

    책을 읽고서 친구들과 토론을 했어요.

    Chaegeul ikgoseo chingudeulgwa toroneul haesseoyo.

    I read the book and afterward had a discussion with my friends.

  3. 3

    급한 일을 먼저 끝내고서 이야기합시다.

    Geuphan ireul meonjeo kkeunnaegoseo iyagihapsida.

    Let's finish the urgent work first and then talk.

Important Notes

Cannot be used with adjectives or preceded by tense markers (-았/었-, -겠-).

Grammar Topics