Grammar
A topic-based reference, not a leveled course: each chapter covers one grammatical topic completely, from its A1 core to wherever it naturally extends. Read chapters in any order, since prerequisites are only suggestions, never requirements. Every chapter ends with an interactive workbook to put the topic into practice.
Part IThe Noun Phrase
- 01Nouns: GenderA2How Spanish assigns masculine and feminine gender to nouns, from the reliable -o/-a pattern to real exceptions like el problema, el/la estudiante, and el agua.
- 02Nouns: NumberA2How Spanish forms plural nouns, from the reliable -s/-es rule to invariant nouns, meaning-changing plurals like el celo/los celos, and collective nouns.
- 03Los artículos (Definite & Indefinite)B1The full Spanish article system: el/la/los/las and un/una/unos/unas, contraction, the el agua rule, when articles get omitted, and the neuter lo.
- 04Adjectives: Agreement & PositionB1How Spanish adjectives agree in gender and number, where they sit relative to the noun, and how that position can change an adjective's meaning.
- 05Adjectives: Comparatives, Superlatives & Productive SuffixesB1How to compare things in Spanish (más/menos que, tan...como), build relative and absolute superlatives (-ísimo), and reshape a word's size or tone with productive suffixes like -ito, -ón, and -azo.
- 06DemonstrativesA2The este/ese/aquel system for pointing at things by distance, its pronoun and neuter forms, and the historical accent mark you may still see in older texts.
- 07PossessivesA2Short-form possessives (mi, tu, su) and long-form possessives (mío, tuyo, suyo), how both agree with the thing possessed rather than the possessor, and how to resolve su/suyo's built-in ambiguity.
- 08Quantifiers & IndefinitesB1How mucho, poco, todo, cada, algún/ningún, cualquiera and other quantifiers agree, apocopate, and shift between quantifier and pronoun use.
- 09Numbers as Grammar: Cardinals, Ordinals & AgreementA2The grammar behind Spanish numbers: uno/veintiuno apocope, hundreds agreement, ordinal apocope, and why native speakers say 'Alfonso Trece' instead of 'Decimotercero.'
- 10Telling Time & DatesA2Constructing clock time and dates in Spanish, from the es la una/son las tres exception to day-month-year date order and the decimal comma.
Part IIPronouns
- 11Subject Pronouns & Pro-DropA2The full subject pronoun set, why Spanish routinely drops subject pronouns (pro-drop grammar), and the specific situations — contrast, ambiguity, emphasis, politeness — where the pronoun is required instead.
- 12Direct Object PronounsB1The lo/la/los/las pronoun set and the placement rules that govern every other object-pronoun chapter, plus Castellano leísmo and its non-standard cousins.
- 13Indirect Object PronounsB1The le/les pronoun set, the placement rules it shares with direct object pronouns, and the two things that make indirect objects genuinely different: clarifying a + phrase and routine doubling with the noun.
- 14Double Object Pronouns & the Se SubstitutionB1Combining direct and indirect object pronouns on the same verb — the fixed IO-before-DO order, the le/les-to-se euphony rule, placement with infinitives, gerunds, and commands, and the errors learners make putting it all together.
- 15Reflexive Pronouns & Reflexive VerbsB1The me/te/se reflexive pronoun set, true reflexive and reciprocal meaning, pronominal verbs like irse and quejarse, the reflexive-article pattern for body parts and clothing, and the B2 no-fault se for unplanned events like se me olvidó.
- 16Prepositional PronounsB1The mí/ti/él-ella-usted pronoun set used after prepositions, the irregular conmigo/contigo/consigo fusion, the que yo vs. que mí contrast, and the redundant a mí me gusta construction used for emphasis.
- 17Relative PronounsB1How que, quien(es), el que/el cual, cuyo, and donde link a description back to a noun, and how register and prepositions decide which one to use.
- 18Interrogative & Exclamative WordsB1How to choose and accent qué, cuál, quién, cómo, cuándo, dónde, and por qué — why the accent survives in indirect questions, when to use cuál instead of qué, and how the same words build exclamations.
- 19Neuter & Indefinite PronounsB1The indefinite pronouns algo/nada and alguien/nadie, uno as an impersonal subject, and lo as a neuter pronoun standing in for an idea rather than a noun — closing out Spanish's pronoun system.
Part IIIVerbs: Foundations & Present-Time Reference
- 20Verb Conjugation System: Overview & Regular VerbsA2What conjugation structurally means in Spanish — the stem-plus-ending logic behind every verb form, the three -ar/-er/-ir conjugation classes, and the future/conditional exception — laid out as the conceptual foundation every later verb chapter assumes.
- 21Ser vs. EstarA2Both ser and estar conjugated in full, plus the decision framework that separates them: defining characteristic vs. condition, event location vs. physical location, adjectives that flip meaning like listo/aburrido, and idiomatic exceptions from ser de to estar de.
- 22Present Tense: Regular -AR/-ER/-IR VerbsA1The full regular present-tense paradigm for -ar, -er, and -ir verbs, and its core uses: habitual actions, general truths, colloquial near-future, and the historical present.
- 23Present Tense: Stem-Changing & Irregular VerbsA2The e-ie, o-ue, and e-i boot-shaped stem changes, yo-irregulars like tengo and hago, orthographic-only spelling adjustments like cojo, and the fully irregular ser/estar/ir/haber, grouped by pattern family instead of an alphabetical list.
- 24Gustar & Verbs Like ItA2The indirect-object-subject inversion behind me gusta el libro, the full gustar-family verb list (encantar, importar, molestar, faltar, doler, quedar, interesar), the classic yo gusto error, and the redundant a mí me gusta emphasis construction.
- 25Present ProgressiveB1Estar + gerund formation, irregular gerunds like pidiendo and leyendo, the written-accent rule for pronoun-attached gerunds, when Spanish requires the progressive versus when the simple present is more natural, and the seguir/andar/llevar + gerund family.
Part IVVerbs: Past Time Reference
- 26El Pretérito Indefinido (Preterite): Regular VerbsA2The full regular preterite paradigm across -ar/-er/-ir verbs, the core meaning of a completed bounded past action, and the -car/-gar/-zar and i-to-y spelling adjustments that keep otherwise-regular verbs sounding right.
- 27El Pretérito Indefinido (Preterite): Irregular VerbsB1The irregular preterite stem families (tuve, hice, dije, fui...), the j-stem -eron ending quirk, the ir/ser and dar/ver overlaps, and the -ir stem-changing verbs' own third-person-only vowel shift (pidió, durmió), grouped by pattern family instead of an alphabetical list.
- 28El Pretérito Imperfecto (Imperfect)A2Full imperfect formation for regular verbs and the three true irregulars (ser, ir, ver), plus its core uses: ongoing and habitual past action, description, age, time, and softening a request by placing it in the past.
- 29Preterite vs. Imperfect: Choosing the Right PastB2The decision framework for choosing between preterite and imperfect: narrative backbone vs. background, interruption structure, and the verbs that shift meaning by aspect (conocí/conocía, supe/sabía, pude/podía, quise/quería).
- 30El Pretérito Perfecto (Present Perfect)B1Haber's present tense used purely as the perfect-tense auxiliary (contrasted with the unrelated existential hay), the full irregular past-participle list, and the genuinely important Spain-vs-Latin-America split in how often the present perfect gets used for today's events.
- 31El Pretérito Pluscuamperfecto (Past Perfect/Pluperfect)B1Había + past participle for describing what had already happened before another past moment, sequencing two past events, and the reported-speech shift from he to había — reusing Chapter 30's participle list rather than re-deriving it.
- 32Narrating in the Past: Combining Preterite, Imperfect & PluperfectB2A synthesis chapter on layering the preterite, imperfect, and pluperfect together in real narrative — the distinct skill of choosing the right tense sentence by sentence, built around one fully annotated worked passage and a verb-by-verb decision framework.
Part VVerbs: Future & Conditional
- 33El Futuro SimpleA2Regular future formation (the whole infinitive plus one ending set shared by -ar/-er/-ir alike), the 12 irregular stems grouped into d-insertion, vowel-drop, and truncation families, the everyday use of the future for conjecture about the present (estará en casa), and a complete-enough-for-A1 introduction to periphrastic future (ir a + infinitivo) ahead of its full treatment in Chapter 45.
- 34El Condicional SimpleB1Conditional formation built on the identical 12 irregular stems from Chapter 33 with a new -ía ending set, the core everyday uses (hypotheticals, polite requests, reported future), the direct past-tense parallel to Chapter 33's present-conjecture use (serían las tres), and the common English 'would'-habitual-past trap that leads learners to misuse the conditional for repeated past actions.
- 35El Futuro Compuesto & Condicional Compuesto (Perfect Forms)B1Habré/habría plus a past participle, reusing haber's irregular habr- stem from Chapters 33-34 and the full irregular-participle list from Chapter 30 rather than re-deriving either: future perfect for an action already completed by a future reference point, conditional perfect for an unrealized past hypothetical, and a third conjecture use (habrá salido ya) that completes the conjecture pattern begun in Chapters 33-34, with an honest cross-reference to Chapter 41 for where the compound conditional's richest use in si-clauses actually lives.
Part VIThe Imperative
Part VIIThe Subjunctive Mood
- 37El Presente de Subjuntivo: FormationB1How to build the present subjunctive for every verb type: the flip-the-vowel rule from a verb's own present-indicative yo-form, stem-changing and yo-irregular subjunctives inherited directly from Chapter 23, the -car/-gar/-zar spelling swaps now spread across all six persons, and the five true irregulars (ser, estar, ir, dar, saber).
- 38El Presente de Subjuntivo: When to Use ItB2The WEIRDO framework (wishes, emotion, impersonal expressions, recommendations, doubt, ojalá) taught as genuine semantic triggers rather than a rote acronym, noun clauses vs. adjective clauses with unknown antecedents vs. a preview of adverbial triggers, the indicative-vs-subjunctive flip under doubt and certainty, and a closing decision-tree synthesis spanning the whole mood-choice system.
- 39El Imperfecto de SubjuntivoB2Both the -ra and -se forms of the imperfect subjunctive, built with one universal shortcut from the preterite's ellos-form stem, past-tense WEIRDO subjunctive triggers, the softened request quisiera, and a first preview of hypothetical si-clauses.
- 40Compound Subjunctive: Presente Perfecto & Pluscuamperfecto de SubjuntivoB2Haya and hubiera/hubiese plus a past participle, the sequence-of-tense logic that matches each compound subjunctive form to its main clause's tense, ojalá plus the pluperfect subjunctive for unrealized past regret, and a clear three-way contrast between hubiera/hubiese, había, and habría.
- 41Conditional Sentences (Si Clauses) & Sequence of TensesB2A synthesis chapter mapping all four si-clause types — real/possible, hypothetical present, hypothetical past, and mixed-time — to their exact required tense pairings, built around one central reference table and reusing Chapter 35's hypothetical-past example in full.
Part VIIINon-Finite Forms & Verb Periphrases
- 42The Infinitive: Forms & FunctionsB1The infinitive's full range of jobs in Spanish: standing in as a verbal noun (fumar es malo), attaching after prepositions and after conjugated verbs with or without a linking preposition, the same-subject rule that decides infinitive vs. subjunctive, the small class of verbs like dejar and hacer that allow either pattern, and the perfect infinitive.
- 43The Gerund: Forms & FunctionsB1The gerund's full range beyond the present progressive: its one invariant formation (reusing Chapter 25's irregular list), its productive adverbial use for manner, simultaneity, and cause, the gerundio de posterioridad misuse to avoid, and why Spanish never lets a gerund act as a noun the way English '-ing' can.
- 44The Past Participle: Forms & AgreementB2The past participle's life outside compound tenses: full formation recap (cross-referencing Chapter 30's irregular list), agreement as an adjective vs. invariance after haber, and the formal absolute construction (terminada la reunión...).
- 45Verbal Periphrases (Perífrasis Verbales)B1The structural pattern class behind ir a + infinitivo, acabar de + infinitivo, volver a + infinitivo, llevar + gerundio, the tener que/haber que/deber three-way obligation contrast, and seguir/continuar + gerundio — one grammatical shape (conjugated verb + link + non-finite form) underneath six everyday constructions.
Part IXPassive & Impersonal Constructions
- 46Passive Voice: Ser-Passive & Se-PassiveB1The true ser + participle passive with full agreement mechanics, the far more common passive/impersonal se (se habla español, se venden casas), how to tell passive-se apart from reflexive-se, and when Spanish avoids true passive altogether in favor of active or se-constructions.
- 47Impersonal ConstructionsB1Every strategy Spanish uses to build a sentence with an unspecified or entirely absent subject: existential hay and hay que across every tense, weather and time impersonals (hace frío, es tarde, hace + duration), impersonal se, and the third-person-plural impersonal (dicen que...), completing the family alongside impersonal uno.
Part XPrepositions
- 48Por vs. ParaB1The full use-case range of por and para built around a backward-looking (por: cause, duration, exchange, movement-through, means) vs. forward-looking (para: purpose, destination, deadline, recipient, comparison) framework, plus fixed expressions and C1 idioms like estar por vs. estar para.
- 49Core Prepositions: A, De, En, ConB1The individual core meanings of a, de, en, and con (direction/time/indirect-object, origin/possession/material, location/transport/time-span, accompaniment/instrument/manner), a reminder of the al/del contraction from Chapter 3, a reference list of common verbs that govern one of these prepositions before a noun or pronoun object, and personal a — the animacy-and-specificity marker before a direct object with no English equivalent.
- 50Other Prepositions & Prepositional PhrasesB1A scannable inventory of sin, sobre, bajo, entre, hacia, hasta, desde, ante, and tras, the closed list of compound prepositional phrases (a través de, a pesar de, en cuanto a, junto a...), and the full desde vs. desde hace vs. hace...que time-expression system promised in Chapter 47, including how each pairs with the present versus the imperfect.
Part XIConjunctions & Connectors
- 51Coordinating ConjunctionsB1Y and o and the euphony swaps that turn them into e and u, the real distinction between pero and sino/sino que, and a brief look at ni...ni.
- 52Subordinating Conjunctions & Adverbial ClausesB2Causal porque/como/ya que/puesto que, purpose clauses with para que/a fin de que, and the full known-fact-vs-hypothetical mood decision for aunque and the cuando/en cuanto/tan pronto como family that Chapter 38 previewed.
Part XIISentence Structure & Word Order
- 53Basic Word Order & Sentence StructureB1Spanish's default SVO order, the verb agreement and personal-a marking that make it more flexible than English, subject-verb inversion and object-fronting for focus, cleft-like lo que...es constructions, and why clitic pronoun placement and passive voice remain fixed exceptions to that flexibility.
- 54NegationB1How Spanish negation works beyond simple no, and why stacking negative words like nadie, nunca, and tampoco after the verb is a required rule, not a mistake.
Part XIIIPragmatics, Register & Discourse
- 55Formality & Register: Tú, Usted, Vosotros & BeyondB2The social logic behind choosing tú, usted, vosotros, or ustedes — how the line shifts by generation, region, and setting, how it differs in writing versus speech, a light introduction to voseo, and practical strategies for navigating ambiguous real-world situations.
- 56Discourse Connectors & CohesionB1How sin embargo, por lo tanto, es decir, en cambio, de hecho, and además link whole sentences together by contrast, consequence, addition, and clarification, plus the narrative-sequencing family (mientras tanto, de repente, entonces, luego, después, al final) that stitches a story's events together beyond tense choice alone.
- 57Hedging, Emphasis & Pragmatic ParticlesB2Bueno, pues, and o sea as genuine conversational discourse markers, emphatic structures like lo que pasa es que and sí que, and the full softening toolkit — diminutives, conditional/imperfect politeness, and hedge words like quizás and no sé — for taking the edge off a statement.