[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"grammar-exercise-01a0e1ac-7cff-7cd5-a572-5d62e731f0f2":3,"grammar-exercise-lesson-01a07863-dca9-7385-8dd8-938736325303":99},{"id":4,"grammarPage":5,"title":6,"instructions":7,"seoTitle":8,"seoDescription":9,"displayOrder":10,"type":11,"questions":12,"ogImageUrl":98},"01a0e1ac-7cff-7cd5-a572-5d62e731f0f2","\u002Fapi\u002Fgrammar_pages\u002F01a07863-dca9-7385-8dd8-938736325303","Building obligation forms","Tap each tile, then tap its matching column.","의무 표현 아야 해요와 어야 해요 형태 분류","의무 표현 아야 해요와 어야 해요의 형태를 분류하는 연습입니다. 동사 기본형을 보고 연결 형태를 고르고, 으 탈락과 불규칙 변화도 구별합니다. 생활 속 짧은 문장을 읽으며 해요체, 합니다체, 반말의 차이와 현재 필요한 일, 과거에 필요했던 일을 나누어 봅니다.",3,"word_sort",[13,37,56,80],{"id":14,"sentenceTemplate":15,"displayOrder":16,"explanation":17,"blanks":18,"payload":19},"01a0e1ac-7cff-7dfd-a572-5d62e7d9c027","Sort each dictionary form by the ending needed to express obligation.",0,"Use -아야 after a stem whose last vowel is ㅏ or ㅗ, -어야 after other vowels, and -해야 for 하다 verbs. For example, 운동하다 becomes 운동해야 해요.",[],{"items":20,"categories":36},[21,24,26,29,31,34],{"text":22,"category":23},"찾다","-아야",{"text":25,"category":23},"닫다",{"text":27,"category":28},"입다","-어야",{"text":30,"category":28},"씻다",{"text":32,"category":33},"청소하다","-해야",{"text":35,"category":33},"전화하다",[28,33,23],{"id":38,"sentenceTemplate":39,"displayOrder":40,"explanation":41,"blanks":42,"payload":43},"01a0e1ac-7cff-7e59-a572-5d62e8309abf","Sort these dictionary forms by the stem change needed before adding the obligation ending.",1,"쓰다 and 바쁘다 lose ㅡ when forming 써야 and 바빠야. 듣다 and 돕다 instead have irregular consonant changes, giving 들어야 and 도와야. For example, 주소를 써야 해요 uses the first pattern.",[],{"items":44,"categories":55},[45,48,50,53],{"text":46,"category":47},"쓰다","Loss of ㅡ",{"text":49,"category":47},"바쁘다",{"text":51,"category":52},"듣다","Irregular consonant change",{"text":54,"category":52},"돕다",[52,47],{"id":57,"sentenceTemplate":58,"displayOrder":59,"explanation":60,"blanks":61,"payload":62},"01a0e1ac-7cff-7e95-a572-5d62e8952b65","Sort each obligation statement by its speech style, not by the action described.",2,"The final ending marks speech style: 해요 is everyday polite speech, 합니다 is formal polite speech, and 해 is casual speech. All three can express obligation. For example, 예약해야 합니다 is formal polite speech.",[],{"items":63,"categories":79},[64,67,69,72,74,77],{"text":65,"category":66},"방을 청소해야 해요.","Everyday polite speech",{"text":68,"category":66},"손을 씻어야 해요.",{"text":70,"category":71},"문을 닫아야 합니다.","Formal polite speech",{"text":73,"category":71},"표를 사야 합니다.",{"text":75,"category":76},"물을 마셔야 해.","Casual speech",{"text":78,"category":76},"집에 가야 해.",[76,66,71],{"id":81,"sentenceTemplate":82,"displayOrder":10,"explanation":83,"blanks":84,"payload":85},"01a0e1ac-7cff-7ecd-a572-5d62e8f488a9","Sort each sentence by whether the obligation is current or was necessary in the past.","해요 expresses a current obligation; 했어요 places the necessity in the past. 오늘 and 어제 reinforce that distinction here. A past obligation does not by itself confirm that the action happened. For example, 지난주에 이사해야 했어요 describes a past necessity.",[],{"items":86,"categories":97},[87,90,92,95],{"text":88,"category":89},"오늘은 버스를 타야 해요.","Current obligation",{"text":91,"category":89},"오늘은 저녁을 만들어야 해요.",{"text":93,"category":94},"어제는 걸어야 했어요.","Past obligation",{"text":96,"category":94},"어제는 병원에 가야 했어요.",[94,89],"\u002Fuploads\u002Fimages\u002Fgpimg_9e1f1f9f-0fad-453d-ac49-ae2da73949db_hero.webp?v=1790492572",{"title":100,"slug":101,"language":102,"level":103},"의무의 '-아\u002F어야 하다'","uimu-ui-a-eoya-hada","ko","A2"]