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Trey t 47a7871c38 Add 13 new grammar notes with 1010 exercises from video extraction

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>

2026-04-16 08:40:05 -05:00

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46. Understanding the Subjunctive

Source: YouTube

The subjunctive is a mood, not a tense — it expresses the speaker's attitude toward situations that are uncertain, hypothetical, desired, or emotional. It has four tenses (present, past, present perfect, past perfect) and is the most variable concept in Spanish.

Key Rules

How to spot a subjunctive sentence

Construction: S/V + que + S/V (subject-verb + que + subject-verb), OR a fixed main clause + que + subject-verb.
The first verb must come from W.E.I.R.D.:
- Will (querer, preferir, necesitar, desear)
- Emotion (esperar, gustar, tener miedo)
- Influence (insistir en, desear)
- Recommendation/Request (recomendar, sugerir, aconsejar)
- Doubt / Disbelief / Denial (dudar, negar, no pensar, no creer)
The second verb (after que) is conjugated in the subjunctive — irregularly, depending on the tense.
The two clauses usually have different subjects.

Verbs that DO NOT trigger the subjunctive

creer que (to believe), saber que (to know factually), es un hecho que (it's a fact that) — these state facts/opinions, not WEIRD categories.

Impersonal expressions that trigger the subjunctive

Es necesario que… — It's necessary that
Es importante que… — It's important that
Es urgente que… — It's urgent that
Es bueno / mejor / malo / triste que… — It's good / better / bad / sad that
Ojalá (que)… — I hope / hopefully

Conjugation / Pattern Tables

The four subjunctive tenses

Tense	Used for
Present subjunctive	Present/future actions after WEIRD trigger
Imperfect (past) subjunctive	Past actions, contrary-to-fact `si` clauses
Present perfect subjunctive	Recently completed actions
Pluperfect subjunctive	Past hypotheticals (would have…)

Examples

Spanish	English	Subjunctive?
Yo creo que tú comiste.	I believe that you ate.	No (creer = opinion)
Yo sé que tú comiste.	I know that you ate.	No (saber = factual)
Es un hecho que tú comiste.	It's a fact that you ate.	No (statement of fact)
Yo quiero que tú estudies.	I want you to study.	Yes (querer = Will)
Es necesario que estemos aquí.	It's necessary that we be here.	Yes (impersonal trigger)

Notes & Gotchas

Same-subject sentences usually drop que and use the infinitive: Yo quiero estudiar (not que yo estudie).
Vosotros forms exist but are rarely needed in Latin American Spanish.
The subjunctive isn't a tense — it's a mood that overlays the tense system.

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