47a7871c38
Scraped a 4h Spanish fundamentals YouTube video (transcript + OCR on 14810 frames), extracted structured content across 52 chapters, and generated fill-in-the-blank quizzes for every grammar topic. - 13 new GrammarNote entries (articles, possessives, demonstratives, greetings, poder, al/del, prepositional pronouns, irregular yo, stem-changing, stressed possessives, present/future perfect, present indicative conjugation) - 1010 generated exercises across all 36 grammar notes (new + existing) - Fix tense guide parser to handle unnumbered *Usages* blocks - Rewrite 6 broken tense guide bodies (imperative, subj pluperfect, subj future) with numbered usage format - Bump courseDataVersion 5→6 with TenseGuide refresh on upgrade - Add docs/spanish-fundamentals/ with raw transcripts, polished notes, structured JSON, and exercise data Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
65 lines
4.0 KiB
JSON
65 lines
4.0 KiB
JSON
{
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"chapter_id": "22",
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"slug": "stem-changing-verbs",
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"title": "Stem-Changing Verbs",
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"time_range_sec": [5579, 5812],
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"summary": "Stem-changing verbs modify their internal vowel in all conjugations except nosotros and vosotros. Four categories exist: e→ie, e→i, o→ue, and u→ue (jugar only).",
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"suggested_grammar_note_id": null,
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"rules": [
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{"title": "The boot pattern", "bullets": ["Stem change applies in yo, tú, él/ella/usted, ellos/ellas/ustedes.", "Nosotros and vosotros keep the original stem."]},
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{"title": "Four categories", "bullets": ["e → ie (empezar, pensar, querer, tener)", "e → i (decir, pedir, servir)", "o → ue (recordar, poder, dormir)", "u → ue (only jugar)"]},
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{"title": "Endings stay regular", "bullets": ["Only the stem vowel changes; the ending follows normal -ar/-er/-ir conjugation."]}
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],
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"examples": [
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{"es": "Yo empiezo el trabajo a las ocho.", "en": "I start work at eight.", "tags": ["e>ie"]},
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{"es": "Tú dices la verdad.", "en": "You tell the truth.", "tags": ["e>i"]},
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{"es": "Él recuerda mi nombre.", "en": "He remembers my name.", "tags": ["o>ue"]},
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{"es": "Nosotros jugamos al fútbol.", "en": "We play soccer.", "tags": ["u>ue", "nosotros-no-change"]},
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{"es": "Ellos pueden venir mañana.", "en": "They can come tomorrow.", "tags": ["o>ue"]},
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{"es": "Yo juego un videojuego.", "en": "I play a video game.", "tags": ["u>ue"]},
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{"es": "Ella piensa en ti.", "en": "She thinks about you.", "tags": ["e>ie"]},
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{"es": "Nosotros recordamos la canción.", "en": "We remember the song.", "tags": ["o>ue", "nosotros-no-change"]}
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],
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"vocab": [
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{"es": "empezar", "en": "to start", "pos": "verb"},
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{"es": "decir", "en": "to say", "pos": "verb"},
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{"es": "recordar", "en": "to remember", "pos": "verb"},
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{"es": "jugar", "en": "to play", "pos": "verb"},
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{"es": "pensar", "en": "to think", "pos": "verb"},
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{"es": "jugo", "en": "juice", "pos": "noun"},
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{"es": "juego", "en": "game", "pos": "noun"},
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{"es": "videojuego", "en": "video game", "pos": "noun"}
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],
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"conjugation_tables": [
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{
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"verb": "empezar",
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"tense_id": "ind_presente",
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"forms": {"yo":"empiezo","tu":"empiezas","el":"empieza","nosotros":"empezamos","vosotros":"empezáis","ellos":"empiezan"}
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},
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{
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"verb": "decir",
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"tense_id": "ind_presente",
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"forms": {"yo":"digo","tu":"dices","el":"dice","nosotros":"decimos","vosotros":"decís","ellos":"dicen"}
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},
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{
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"verb": "recordar",
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"tense_id": "ind_presente",
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"forms": {"yo":"recuerdo","tu":"recuerdas","el":"recuerda","nosotros":"recordamos","vosotros":"recordáis","ellos":"recuerdan"}
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},
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{
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"verb": "jugar",
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"tense_id": "ind_presente",
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"forms": {"yo":"juego","tu":"juegas","el":"juega","nosotros":"jugamos","vosotros":"jugáis","ellos":"juegan"}
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}
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],
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"exercises": [
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{"sentence": "Yo _____ a estudiar a las nueve. (empezar)", "correct": "empiezo", "distractor": "empezo", "explanation": "empezar is e→ie; the yo form is empiezo."},
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{"sentence": "Nosotros _____ al fútbol los sábados. (jugar)", "correct": "jugamos", "distractor": "juegamos", "explanation": "Nosotros doesn't take the stem change; it stays jugamos."},
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{"sentence": "Ella _____ que sí. (decir)", "correct": "dice", "distractor": "dece", "explanation": "decir is e→i; él/ella form is dice."},
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{"sentence": "Yo _____ tu cumpleaños. (recordar)", "correct": "recuerdo", "distractor": "recordo", "explanation": "recordar is o→ue; the yo form is recuerdo."},
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{"sentence": "Ellos _____ venir hoy. (poder)", "correct": "pueden", "distractor": "poden", "explanation": "poder is o→ue; ellos form is pueden."},
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{"sentence": "Vosotros _____ pronto. (empezar)", "correct": "empezáis", "distractor": "empiezáis", "explanation": "Vosotros keeps the original stem: empezáis."}
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],
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"caveats": "OCR contained many garbled phonetic spellings (e.g., 'empar', 'koso', 'huego'); reconstructed using standard Spanish spellings."
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}
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