Word~해서~haeseoMeaningand thenPart of speechconjunctionPronunciationCourseHardcore KoreanLessonLesson 20Usages of ~haeseo자료를 복사해서 교수님께 제출해야 해요.jaryoreul boksahaeseo gyosunimkke jechulhaeya haeyo.You have to copy the materials and submit them to the professor.