[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"grammar-exercise-019f7f70-3592-7b1b-9bb3-66f498abba01":3,"grammar-exercise-lesson-019f7f70-2df5-7bf2-9485-e8701b744386":342},["Reactive",4],{"id":5,"grammarPage":6,"title":7,"instructions":8,"displayOrder":9,"type":10,"questions":11,"ogImageUrl":341},"019f7f70-3592-7b1b-9bb3-66f498abba01","\u002Fapi\u002Fgrammar_pages\u002F019f7f70-2df5-7bf2-9485-e8701b744386","Cambios de raíz y contrastes","Completa las situaciones en pretérito. Comprueba si el verbo termina en -ir y si el sujeto es una tercera persona; algunas preguntas comparan dos formas.",1,"word_select",[12,34,52,81,111,141,171,199,228,247,266,285,304],{"id":13,"sentenceTemplate":14,"displayOrder":15,"explanation":16,"exampleSentence":17,"blanks":18},"019f7f70-3592-7d37-9bb3-66f49acbd4cf","Ayer, en la cafetería, Marta (pedir) __1__ un bocadillo vegetal.",0,"Pedir es un verbo en -ir con cambio e → i. Como Marta equivale a ella, usamos pidió.","El niño sintió frío al salir de la piscina.",[19],{"id":20,"blankNumber":9,"options":21},"019f7f70-3592-7cb3-9bb3-66f49aa37693",[22,26,30],{"id":23,"optionText":24,"isCorrect":25,"displayOrder":15},"019f7f70-3592-7bd3-9bb3-66f4992f82e2","pidió",true,{"id":27,"optionText":28,"isCorrect":29,"displayOrder":9},"019f7f70-3592-7c2b-9bb3-66f499444f33","pedió",false,{"id":31,"optionText":32,"isCorrect":29,"displayOrder":33},"019f7f70-3592-7c6f-9bb3-66f49a240d68","pidí",2,{"id":35,"sentenceTemplate":36,"displayOrder":9,"explanation":37,"exampleSentence":38,"blanks":39},"019f7f70-3592-7f07-9bb3-66f49c3dbe08","Al terminar la carrera del domingo pasado, las atletas (sentir) __1__ un gran alivio.","Con las atletas usamos la tercera persona plural. En sentir, la e cambia a i en esa persona: sintieron.","Los camareros sirvieron la cena a las nueve.",[40],{"id":41,"blankNumber":9,"options":42},"019f7f70-3592-7e97-9bb3-66f49c0c4b4b",[43,46,49],{"id":44,"optionText":45,"isCorrect":29,"displayOrder":15},"019f7f70-3592-7dcb-9bb3-66f49b1d082f","sintió",{"id":47,"optionText":48,"isCorrect":29,"displayOrder":9},"019f7f70-3592-7e13-9bb3-66f49b84ec5d","sentieron",{"id":50,"optionText":51,"isCorrect":25,"displayOrder":33},"019f7f70-3592-7e57-9bb3-66f49b896a56","sintieron",{"id":53,"sentenceTemplate":54,"displayOrder":33,"explanation":55,"exampleSentence":56,"blanks":57},"019f7f70-3593-7272-974f-530d69a5a506","Ayer yo (repetir) __1__ la pregunta y la guía la (repetir) __2__ más despacio.","Con el sujeto yo, la vocal no cambia: repetí. La guía es tercera persona singular, por eso e cambia a i: repitió.","Tú pediste ayuda y la coordinadora pidió silencio.",[58,70],{"id":59,"blankNumber":9,"options":60},"019f7f70-3593-70be-974f-530d66eb74b7",[61,64,67],{"id":62,"optionText":63,"isCorrect":29,"displayOrder":15},"019f7f70-3592-7f8f-9bb3-66f49c7547d4","repitió",{"id":65,"optionText":66,"isCorrect":25,"displayOrder":9},"019f7f70-3593-7032-974f-530d660a7156","repetí",{"id":68,"optionText":69,"isCorrect":29,"displayOrder":33},"019f7f70-3593-707e-974f-530d6618728c","repití",{"id":71,"blankNumber":33,"options":72},"019f7f70-3593-7206-974f-530d68e2fdf9",[73,76,79],{"id":74,"optionText":75,"isCorrect":29,"displayOrder":15},"019f7f70-3593-7142-974f-530d6709b4ce","repitieron",{"id":77,"optionText":78,"isCorrect":29,"displayOrder":9},"019f7f70-3593-7182-974f-530d677cc66f","repetió",{"id":80,"optionText":63,"isCorrect":25,"displayOrder":33},"019f7f70-3593-71c6-974f-530d67ecc557",{"id":82,"sentenceTemplate":83,"displayOrder":84,"explanation":85,"exampleSentence":86,"blanks":87},"019f7f70-3593-7556-974f-530d6d84f99d","En la fiesta del viernes pasado, nosotros (servir) __1__ las bebidas y los anfitriones (servir) __2__ el postre.",3,"Con nosotros se conserva la e: servimos. Con los anfitriones usamos la tercera persona plural y cambiamos e por i: sirvieron.","Vosotros sentisteis el temblor y los vecinos lo sintieron también.",[88,100],{"id":89,"blankNumber":9,"options":90},"019f7f70-3593-73ee-974f-530d6b101161",[91,94,97],{"id":92,"optionText":93,"isCorrect":29,"displayOrder":15},"019f7f70-3593-732a-974f-530d69af40ed","sirvieron",{"id":95,"optionText":96,"isCorrect":29,"displayOrder":9},"019f7f70-3593-736e-974f-530d69be2d47","sirvimos",{"id":98,"optionText":99,"isCorrect":25,"displayOrder":33},"019f7f70-3593-73ae-974f-530d6ab4e035","servimos",{"id":101,"blankNumber":33,"options":102},"019f7f70-3593-751a-974f-530d6d13973f",[103,105,108],{"id":104,"optionText":93,"isCorrect":25,"displayOrder":15},"019f7f70-3593-745a-974f-530d6bcd8d0d",{"id":106,"optionText":107,"isCorrect":29,"displayOrder":9},"019f7f70-3593-74b6-974f-530d6c696ff5","servieron",{"id":109,"optionText":110,"isCorrect":29,"displayOrder":33},"019f7f70-3593-74f6-974f-530d6c7a78e7","sirvió",{"id":112,"sentenceTemplate":113,"displayOrder":114,"explanation":115,"exampleSentence":116,"blanks":117},"019f7f70-3593-76ee-974f-530d72d05c6c","En la excursión de ayer, tú (preferir) __1__ el sendero corto, pero tus amigas (preferir) __2__ la ruta larga.",4,"Con el sujeto tú, la raíz no cambia: preferiste. Con tus amigas usamos la tercera persona plural, así que e cambia a i: prefirieron.","Yo pedí sopa y mis compañeros pidieron ensalada.",[118,130],{"id":119,"blankNumber":9,"options":120},"019f7f70-3593-7616-974f-530d6fabbedd",[121,124,127],{"id":122,"optionText":123,"isCorrect":25,"displayOrder":15},"019f7f70-3593-75b2-974f-530d6e7de4de","preferiste",{"id":125,"optionText":126,"isCorrect":29,"displayOrder":9},"019f7f70-3593-75d6-974f-530d6f49ecf5","prefiriste",{"id":128,"optionText":129,"isCorrect":29,"displayOrder":33},"019f7f70-3593-75f6-974f-530d6f6f3ba9","prefirieron",{"id":131,"blankNumber":33,"options":132},"019f7f70-3593-76b6-974f-530d721e1861",[133,136,139],{"id":134,"optionText":135,"isCorrect":29,"displayOrder":15},"019f7f70-3593-764a-974f-530d7099042d","prefirió",{"id":137,"optionText":138,"isCorrect":29,"displayOrder":9},"019f7f70-3593-766e-974f-530d70cdce1d","preferieron",{"id":140,"optionText":129,"isCorrect":25,"displayOrder":33},"019f7f70-3593-768a-974f-530d71b773fd",{"id":142,"sentenceTemplate":143,"displayOrder":144,"explanation":145,"exampleSentence":146,"blanks":147},"019f7f70-3593-786a-974f-530d76513a2e","Anoche, nosotros (dormir) __1__ en el refugio, pero la niña (dormir) __2__ en casa de su abuela.",5,"Con nosotros se conserva la o: dormimos. La niña es tercera persona singular, por eso o cambia a u: durmió.","Yo dormí junto a la ventana y el gato durmió en el sofá.",[148,160],{"id":149,"blankNumber":9,"options":150},"019f7f70-3593-77a6-974f-530d739ff985",[151,154,157],{"id":152,"optionText":153,"isCorrect":29,"displayOrder":15},"019f7f70-3593-7742-974f-530d730413a7","durmieron",{"id":155,"optionText":156,"isCorrect":25,"displayOrder":9},"019f7f70-3593-7766-974f-530d730c7191","dormimos",{"id":158,"optionText":159,"isCorrect":29,"displayOrder":33},"019f7f70-3593-7786-974f-530d7317a821","durmimos",{"id":161,"blankNumber":33,"options":162},"019f7f70-3593-7836-974f-530d761bb10a",[163,166,168],{"id":164,"optionText":165,"isCorrect":29,"displayOrder":15},"019f7f70-3593-77da-974f-530d73afcc97","dormió",{"id":167,"optionText":153,"isCorrect":29,"displayOrder":9},"019f7f70-3593-77fa-974f-530d74410a54",{"id":169,"optionText":170,"isCorrect":25,"displayOrder":33},"019f7f70-3593-781a-974f-530d75311420","durmió",{"id":172,"sentenceTemplate":173,"displayOrder":174,"explanation":175,"exampleSentence":176,"blanks":177},"019f7f70-3593-79de-974f-530d7b6e1173","En el campamento del sábado pasado, vosotros (dormir) __1__ en tiendas y los monitores (dormir) __2__ en una cabaña.",6,"Con vosotros, la vocal no cambia: dormisteis. Con los monitores usamos la tercera persona plural, así que la forma es durmieron.","Tú dormiste poco, pero los bebés durmieron toda la noche.",[178,189],{"id":179,"blankNumber":9,"options":180},"019f7f70-3593-791e-974f-530d78ed53e9",[181,184,186],{"id":182,"optionText":183,"isCorrect":29,"displayOrder":15},"019f7f70-3593-78be-974f-530d770655e5","durmisteis",{"id":185,"optionText":153,"isCorrect":29,"displayOrder":9},"019f7f70-3593-78de-974f-530d77e6ad87",{"id":187,"optionText":188,"isCorrect":25,"displayOrder":33},"019f7f70-3593-78fe-974f-530d78621efd","dormisteis",{"id":190,"blankNumber":33,"options":191},"019f7f70-3593-79aa-974f-530d7a9570aa",[192,194,197],{"id":193,"optionText":153,"isCorrect":25,"displayOrder":15},"019f7f70-3593-794e-974f-530d7956e6b9",{"id":195,"optionText":196,"isCorrect":29,"displayOrder":9},"019f7f70-3593-7972-974f-530d79ae46c0","dormieron",{"id":198,"optionText":170,"isCorrect":29,"displayOrder":33},"019f7f70-3593-798e-974f-530d7a180548",{"id":200,"sentenceTemplate":201,"displayOrder":202,"explanation":203,"exampleSentence":204,"blanks":205},"019f7f70-3593-7b5e-974f-530d81bb15f8","Después de la helada, una planta (morir) __1__, pero los árboles no (morir) __2__.",7,"Morir cambia o por u en las dos terceras personas: una planta murió y los árboles no murieron.","El cachorro durmió en la cocina y los perros adultos durmieron fuera.",[206,218],{"id":207,"blankNumber":9,"options":208},"019f7f70-3593-7a9a-974f-530d7e6c88ac",[209,212,215],{"id":210,"optionText":211,"isCorrect":29,"displayOrder":15},"019f7f70-3593-7a32-974f-530d7c65dc49","morió",{"id":213,"optionText":214,"isCorrect":25,"displayOrder":9},"019f7f70-3593-7a5e-974f-530d7d598656","murió",{"id":216,"optionText":217,"isCorrect":29,"displayOrder":33},"019f7f70-3593-7a7e-974f-530d7daa8207","murieron",{"id":219,"blankNumber":33,"options":220},"019f7f70-3593-7b2a-974f-530d80e6b019",[221,223,226],{"id":222,"optionText":214,"isCorrect":29,"displayOrder":15},"019f7f70-3593-7ace-974f-530d7e892885",{"id":224,"optionText":225,"isCorrect":29,"displayOrder":9},"019f7f70-3593-7aee-974f-530d7f7c5f78","morieron",{"id":227,"optionText":217,"isCorrect":25,"displayOrder":33},"019f7f70-3593-7b0a-974f-530d8014bd4c",{"id":229,"sentenceTemplate":230,"displayOrder":231,"explanation":232,"exampleSentence":233,"blanks":234},"019f7f70-3593-7c42-974f-530d859964fe","En el viaje de ayer, Marta (pensar) __1__ en el problema durante una hora.",8,"Pensar termina en -ar. Aunque cambia en presente, en el pretérito no cambia la raíz: pensó, no piensó ni pinsó.","El equipo cerró la oficina después de la reunión.",[235],{"id":236,"blankNumber":9,"options":237},"019f7f70-3593-7c0e-974f-530d84c9d27d",[238,241,244],{"id":239,"optionText":240,"isCorrect":29,"displayOrder":15},"019f7f70-3593-7bb2-974f-530d82983e5f","pinsó",{"id":242,"optionText":243,"isCorrect":25,"displayOrder":9},"019f7f70-3593-7bd2-974f-530d82ec2107","pensó",{"id":245,"optionText":246,"isCorrect":29,"displayOrder":33},"019f7f70-3593-7bf2-974f-530d83d46188","piensó",{"id":248,"sentenceTemplate":249,"displayOrder":250,"explanation":251,"exampleSentence":252,"blanks":253},"019f7f70-3593-7d0e-974f-530d86d08e01","¿A qué hora (cerrar) __1__ ustedes la tienda el viernes pasado?",9,"Cerrar es un verbo en -ar, por eso no cambia la vocal de la raíz en el pretérito: cerraron.","Mis compañeras pensaron en otra solución.",[254],{"id":255,"blankNumber":9,"options":256},"019f7f70-3593-7cde-974f-530d8629a844",[257,260,263],{"id":258,"optionText":259,"isCorrect":25,"displayOrder":15},"019f7f70-3593-7c82-974f-530d85b64253","cerraron",{"id":261,"optionText":262,"isCorrect":29,"displayOrder":9},"019f7f70-3593-7ca2-974f-530d860bd33c","cirraron",{"id":264,"optionText":265,"isCorrect":29,"displayOrder":33},"019f7f70-3593-7cc2-974f-530d860ec7d4","cierraron",{"id":267,"sentenceTemplate":268,"displayOrder":269,"explanation":270,"exampleSentence":271,"blanks":272},"019f7f70-3593-7dea-974f-530d8aa1d0b6","Los turistas (volver) __1__ al hotel después de la visita de ayer.",10,"Volver termina en -er. El cambio de presente vuelve no pasa al pretérito: ellos volvieron.","La directora entendió la situación al final de la llamada.",[273],{"id":274,"blankNumber":9,"options":275},"019f7f70-3593-7db6-974f-530d89c0b7dc",[276,279,282],{"id":277,"optionText":278,"isCorrect":29,"displayOrder":15},"019f7f70-3593-7d4e-974f-530d8755bfd5","vuelvieron",{"id":280,"optionText":281,"isCorrect":29,"displayOrder":9},"019f7f70-3593-7d6e-974f-530d884c5a65","vulvieron",{"id":283,"optionText":284,"isCorrect":25,"displayOrder":33},"019f7f70-3593-7d8e-974f-530d89310374","volvieron",{"id":286,"sentenceTemplate":287,"displayOrder":288,"explanation":289,"exampleSentence":290,"blanks":291},"019f7f70-3593-7eba-974f-530d8c639891","En la reunión del lunes pasado, usted (entender) __1__ todas las instrucciones.",11,"Entender es un verbo en -er y no cambia la raíz en el pretérito. Con usted usamos entendió.","Los jugadores perdieron el primer partido del torneo.",[292],{"id":293,"blankNumber":9,"options":294},"019f7f70-3593-7e86-974f-530d8c23090f",[295,298,301],{"id":296,"optionText":297,"isCorrect":29,"displayOrder":15},"019f7f70-3593-7e2a-974f-530d8ac0678f","entiendió",{"id":299,"optionText":300,"isCorrect":25,"displayOrder":9},"019f7f70-3593-7e4e-974f-530d8b58d16d","entendió",{"id":302,"optionText":303,"isCorrect":29,"displayOrder":33},"019f7f70-3593-7e6a-974f-530d8be53fec","intindió",{"id":305,"sentenceTemplate":306,"displayOrder":307,"explanation":308,"exampleSentence":309,"blanks":310},"019f7f70-3594-710b-a469-9b9cf006a635","Al revisar «comencé, incluyeron, midió», el cambio de comencé es __1__, el de incluyeron es __2__ y el de midió es __3__.",12,"Comencé aplica z → c porque es la forma yo de comenzar. Incluyeron aplica i → y en tercera persona plural. Midió aplica e → i en tercera persona singular de medir, un verbo en -ir.","«Toqué» aplica c → qu con yo; «durmieron» aplica o → u en tercera persona plural.",[311,323,332],{"id":312,"blankNumber":9,"options":313},"019f7f70-3593-7f56-974f-530d8f36b0f0",[314,317,320],{"id":315,"optionText":316,"isCorrect":29,"displayOrder":15},"019f7f70-3593-7efa-974f-530d8d296bec","e → i en tercera persona de un verbo en -ir",{"id":318,"optionText":319,"isCorrect":25,"displayOrder":9},"019f7f70-3593-7f1a-974f-530d8deb6015","z → c en la forma yo",{"id":321,"optionText":322,"isCorrect":29,"displayOrder":33},"019f7f70-3593-7f3a-974f-530d8e3ce068","i → y entre vocales en tercera persona",{"id":324,"blankNumber":33,"options":325},"019f7f70-3594-704f-a469-9b9ced9cebe5",[326,328,330],{"id":327,"optionText":322,"isCorrect":25,"displayOrder":15},"019f7f70-3593-7f8a-974f-530d8fdfb39d",{"id":329,"optionText":319,"isCorrect":29,"displayOrder":9},"019f7f70-3594-700b-a469-9b9cebf31097",{"id":331,"optionText":316,"isCorrect":29,"displayOrder":33},"019f7f70-3594-702f-a469-9b9cecafc32d",{"id":333,"blankNumber":84,"options":334},"019f7f70-3594-70db-a469-9b9cef5759c6",[335,337,339],{"id":336,"optionText":319,"isCorrect":29,"displayOrder":15},"019f7f70-3594-707f-a469-9b9cedae2bd8",{"id":338,"optionText":322,"isCorrect":29,"displayOrder":9},"019f7f70-3594-709f-a469-9b9cee1d8982",{"id":340,"optionText":316,"isCorrect":25,"displayOrder":33},"019f7f70-3594-70bb-a469-9b9ceee9a61e","\u002Fuploads\u002Fimages\u002Fgpimg_019f7e4b-b8f6-7ce0-9ae5-2cbe6d7c094e_hero.webp",{"title":343,"slug":344,"language":345,"level":346},"Cambios ortográficos y vocálicos en el pretérito","cambios-ortograficos-y-vocalicos-en-el-preterito","es","A2"]