Word~세요~seyoMeaningplease (polite imperative)Part of speechsentence endingPronunciationCourseHardcore KoreanLessonLesson 30Usages of ~seyo비행기를 탈 때 여권을 꼭 챙기세요.bihaenggireul tal ttae yeogwoneul kkok chaenggiseyo.Be sure to bring your passport when you board a plane.