Spanish Rules Library

Spanish rules for humans. Structured for AI.

An independent, multilingual reference for Spanish grammar, verb conjugation, usage, and regional variation — read it as web pages, or consume the same source of truth as a JSON API and AI-readable Markdown.

318 rules published · 638 machine-verified conjugation tables

Verbs

638 full conjugation tables, every form machine-verified →

Conjugation 55

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Grammar 143

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Usage & situations 48

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Confusing pairs 28

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Pronunciation 22

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Regional Spanish 22

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