{
  "noteId": "common-irregular-verbs",
  "target_count": 30,
  "seed_count": 0,
  "generated_count": 30,
  "exercises": [
    {"sentence": "Yo _____ profesor de música.", "correct": "soy", "distractor": "estoy", "explanation": "Ser for permanent identity/profession."},
    {"sentence": "Nosotros _____ al cine anoche. (ir)", "correct": "fuimos", "distractor": "íbamos", "explanation": "Preterite of ir for a completed action."},
    {"sentence": "Ella _____ veinte años. (tener, present)", "correct": "tiene", "distractor": "tene", "explanation": "Tener is irregular: él/ella tiene."},
    {"sentence": "Ayer yo _____ la tarea. (hacer)", "correct": "hice", "distractor": "hací", "explanation": "Preterite yo form of hacer is hice."},
    {"sentence": "¿Qué _____ tú? — Nada importante. (decir, present)", "correct": "dices", "distractor": "dices", "explanation": "Present tú of decir is dices (e→i)."},
    {"sentence": "Yo no _____ venir mañana. (poder, present)", "correct": "puedo", "distractor": "podo", "explanation": "Stem change o→ue in poder."},
    {"sentence": "Mis padres _____ visitarnos. (querer, present)", "correct": "quieren", "distractor": "queren", "explanation": "Stem change e→ie in querer."},
    {"sentence": "Yo no _____ la respuesta. (saber, present)", "correct": "sé", "distractor": "sabo", "explanation": "Yo form of saber is irregular: sé."},
    {"sentence": "Nosotros _____ la película anoche. (ver)", "correct": "vimos", "distractor": "veímos", "explanation": "Preterite nosotros of ver is vimos."},
    {"sentence": "Yo te _____ un regalo. (dar, present)", "correct": "doy", "distractor": "do", "explanation": "Yo form of dar is irregular: doy."},
    {"sentence": "Yo _____ del trabajo a las seis. (salir, present)", "correct": "salgo", "distractor": "salo", "explanation": "Salir has a -go yo form: salgo."},
    {"sentence": "Cuando era niño, yo _____ al parque cada día. (ir, imperfect)", "correct": "iba", "distractor": "fui", "explanation": "Imperfect for habitual past actions."},
    {"sentence": "Mañana ellos _____ la verdad. (decir, future)", "correct": "dirán", "distractor": "decirán", "explanation": "Future of decir uses irregular stem dir-."},
    {"sentence": "Yo _____ feliz si vinieras. (ser, conditional)", "correct": "sería", "distractor": "seré", "explanation": "Conditional sería expresses a hypothetical."},
    {"sentence": "Espero que tú _____ bien. (estar, subjunctive)", "correct": "estés", "distractor": "estás", "explanation": "Present subjunctive after espero que."},
    {"sentence": "Quiero que él _____ la tarea. (hacer, subjunctive)", "correct": "haga", "distractor": "hace", "explanation": "Present subjunctive of hacer is haga."},
    {"sentence": "Ayer Juan _____ enfermo todo el día. (estar)", "correct": "estuvo", "distractor": "estaba", "explanation": "Preterite estuvo for a completed past state."},
    {"sentence": "Cuando llegué, ella _____ leyendo. (estar, imperfect)", "correct": "estaba", "distractor": "estuvo", "explanation": "Imperfect for ongoing background action."},
    {"sentence": "Yo _____ la mesa todas las noches. (poner, present)", "correct": "pongo", "distractor": "pono", "explanation": "Poner has a -go yo form: pongo."},
    {"sentence": "Anoche nosotros _____ tarde a casa. (venir)", "correct": "vinimos", "distractor": "veníamos", "explanation": "Preterite nosotros of venir is vinimos."},
    {"sentence": "Mañana yo _____ tiempo para ti. (tener, future)", "correct": "tendré", "distractor": "teneré", "explanation": "Future of tener uses irregular stem tendr-."},
    {"sentence": "El año pasado yo _____ a México. (ir)", "correct": "fui", "distractor": "iba", "explanation": "Preterite fui for a completed trip."},
    {"sentence": "De niña, ella _____ muy tímida. (ser, imperfect)", "correct": "era", "distractor": "fue", "explanation": "Imperfect era for descriptions in the past."},
    {"sentence": "Yo no _____ nada raro. (ver, present)", "correct": "veo", "distractor": "vo", "explanation": "Yo form of ver is irregular: veo."},
    {"sentence": "¿Cuántos hermanos _____ tú? (tener, present)", "correct": "tienes", "distractor": "tenes", "explanation": "Stem change e→ie: tú tienes."},
    {"sentence": "Si pudiera, yo _____ más. (hacer, conditional)", "correct": "haría", "distractor": "haceré", "explanation": "Conditional of hacer uses stem har-."},
    {"sentence": "Ojalá que ellos _____ pronto. (venir, subjunctive)", "correct": "vengan", "distractor": "vienen", "explanation": "Present subjunctive of venir is vengan."},
    {"sentence": "Ayer él me _____ un libro. (dar)", "correct": "dio", "distractor": "dió", "explanation": "Preterite él of dar is dio (no accent)."},
    {"sentence": "Nosotros _____ que estudiar más. (tener, present)", "correct": "tenemos", "distractor": "tienemos", "explanation": "Nosotros doesn't take stem change: tenemos."},
    {"sentence": "El próximo año yo _____ a España. (ir, future)", "correct": "iré", "distractor": "voy", "explanation": "Future iré for a planned future trip."}
  ]
}
