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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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15. "al" & "del"

Source: video link

Spanish contracts the prepositions a and de with the masculine singular article el to avoid the redundant vowel sounds "a el" and "de el". These are the only two mandatory contractions in Spanish.

Key Rules

a + el → al ("to the" masculine).
de + el → del ("of the" / "from the" masculine).
The contraction is mandatory when the article el follows directly.
Do not contract with la, los, las, or with the pronoun él (he/him).
Capitalized El in proper names (e.g., El Salvador) is not contracted: "Voy a El Salvador."

Conjugation / Pattern Tables

Combination	Contracted	Meaning
a + el	al	to the (m. sing.)
a + la	a la	to the (f. sing.)
a + los	a los	to the (m. pl.)
a + las	a las	to the (f. pl.)
de + el	del	of/from the (m. sing.)
de + la	de la	of/from the (f. sing.)
de + los	de los	of/from the (m. pl.)
de + las	de las	of/from the (f. pl.)

Examples

Spanish	English
Yo quiero ir al baño.	I want to go to the bathroom.
Yo quiero ir a la clase.	I want to go to the class.
Él es del mercado.	He is from the market.
Él es de la clase.	He is from the class.
¿Qué supones del mercado?	What do you suppose of the market?
Vamos al parque.	Let's go to the park.
Vengo del trabajo.	I come from work.
Es el libro del profesor.	It's the teacher's book.

Notes & Gotchas

Only el (the article) contracts. The pronoun él keeps its accent and stays separate: Es de él (It's his), Voy a él (I go toward him).
Proper nouns with capital "El" do not contract.
Feminine and plural articles never contract.

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