고지서를 받으�?송달지(실거주지)�?변경하실려�?서비스를 신청하여 주시�?바랍니다. The 2 most commonly encountered grammatical concepts where this happens is when conjugating prior to now or present tenses. For examples: - 국민건강보험종합계획 �?연도�?시행계획, 요양급여�?기�