SPANISH 2 • LANGUAGE SYSTEMS (GRAMMAR & SYNTAX)

Making Comparisons — I can use comparisons (more/less, equality) to describe preferences and evaluate options in simple sentences.

Learn to express preferences and evaluate choices using Spanish comparison structures with confidence and accuracy.

Historical Context & Motivation

Every language gives its speakers ways to compare things — sizes, qualities, preferences, and quantities. In Spanish, the structures for making comparisons trace directly back to Latin, the ancestor language of all Romance languages. Latin used inflectional endings on adjectives (like adding -ior for "more"), but as the language evolved into Spanish over centuries, those endings largely disappeared. In their place, Spanish developed a system of analytic comparisons — separate words like más (more) and menos (less) placed before adjectives, adverbs, and nouns to express degrees of comparison.

~200 BCE
Latin Comparative System
Classical Latin uses inflectional endings like -ior and -issimus to form comparatives and superlatives directly on adjectives (e.g., altior = "taller").
~500 CE
Vulgar Latin Shift
Spoken (Vulgar) Latin begins replacing inflectional comparatives with the word magis (more) plus an adjective, laying the groundwork for Romance-language comparison structures.
~1200 CE
Old Spanish Emerges
Old Spanish solidifies the use of más and menos as the primary comparison words, while a handful of irregular forms (like mejor) survive from Latin.
~1500 CE
Modern Spanish Standardization
The grammar of comparison is codified in early Spanish grammars, including Nebrija's 1492 Gramática de la lengua castellana. The three-part system — comparisons of superiority, inferiority, and equality — becomes standard.

Understanding this history helps explain why Spanish comparisons work the way they do. Unlike English, which sometimes changes the adjective itself ("big" → "bigger"), Spanish almost always keeps the adjective unchanged and places a comparison word in front of it. The core question this lesson addresses is: How do you accurately express that something is more, less, or equal to something else in Spanish?

Core Principles & Definitions

Spanish comparisons fall into three main categories. Each one follows a predictable formula, which means that once you learn the patterns, you can apply them to virtually any adjective, adverb, noun, or verb. Let's define the three types before diving deeper.

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Comparaciones de superioridad

Express that something has more of a quality. Formula: más + adjective/adverb/noun + que. Example: María es más alta que Juan. (María is taller than Juan.)
2

Comparaciones de inferioridad

Express that something has less of a quality. Formula: menos + adjective/adverb/noun + que. Example: Este libro es menos interesante que ese. (This book is less interesting than that one.)
3

Comparaciones de igualdad

Express that two things are equal in a quality. Formula: tan + adjective/adverb + como or tanto/a/os/as + noun + como. Example: Ella es tan inteligente como él. (She is as intelligent as he.)
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Comparativos irregulares

A small set of adjectives have irregular comparative forms inherited from Latin. These include mejor (better), peor (worse), mayor (older/greater), and menor (younger/lesser). These do NOT use más or menos.
KEY TAKEAWAY
Think of Spanish comparisons like building a sandwich. The "bread" is the comparison word (más/menos/tan) and the connector (que/como), and the "filling" is the adjective, adverb, or noun you're comparing. Once you know which bread to use, you just swap in whatever filling you need. The adjective itself never changes form for the comparison — you keep it exactly as it is.

Visual Explanation — Comparison Structures at a Glance

The following diagram maps out all three comparison types visually, showing how each formula is constructed and which connector word (que or como) is used. Pay close attention to the equality section — it uses different structures depending on whether you're comparing with an adjective/adverb or with a noun.

This diagram organizes the three main comparison types — superioridad, inferioridad, and igualdad — alongside the special noun-based equality structure and the four irregular comparatives you must memorize.

Notice how the top row shares a common architecture: a comparison word, then the quality being compared, then the connector word. The key difference between superiority/inferiority and equality is the connector — que for unequal comparisons and como for equal comparisons. This is one of the most common errors students make, so keep this visual distinction in mind.

How the Structures Work — Deep Dive

Comparisons of Inequality (más/menos … que)

Both superiority and inferiority comparisons follow the same underlying pattern. You place más or menos before the element being compared — which can be an adjective, an adverb, or a noun — and then follow it with que to introduce the second element of the comparison. The adjective still agrees in gender and number with the subject it describes, not with the thing it's being compared to.

INEQUALITY COMPARISON FORMULA
Subject + verb + más/menos + [adj/adv/noun] + que + second element
With adjectives: Mi casa es más grande que tu casa. With adverbs: Ella corre más rápido que yo. With nouns: Tengo más amigos que tú.
⚠️ ¡Ojo! — Numbers Change the Rule
When comparing with a specific number, use más de / menos de instead of que. For example: Hay más de veinte estudiantes en la clase. (There are more than twenty students in the class.) This is a common test question, so remember: numbers take de, not que.

Comparisons of Equality (tan … como / tanto … como)

Equality comparisons require you to choose between two structures depending on what you are comparing. When comparing with an adjective or adverb, use tan (invariable — it never changes form). When comparing with a noun, use tanto, which must agree in gender and number with the noun: tanto, tanta, tantos, tantas. Both structures use como as the connector.

EQUALITY WITH ADJECTIVE / ADVERB
Subject + verb + tan + [adjective/adverb] + como + second element
Este examen es tan difícil como el otro. (This exam is as difficult as the other one.)
EQUALITY WITH NOUNS
Subject + verb + tanto/a/os/as + [noun] + como + second element
Ella tiene tantas clases como yo. (She has as many classes as I do.) Note: tantas agrees with clases (feminine plural).

Irregular Comparatives

Four common adjectives have special comparative forms that replace the entire más + adjective structure. You should never say más bueno when you mean "better" — instead, use mejor. Similarly, malo becomes peor (worse), viejo becomes mayor (older) when referring to age, and joven becomes menor (younger). These irregulars still use que as the connector: Esta pizza es mejor que esa.

Detailed Breakdown — Choosing the Right Structure

One of the trickiest aspects of Spanish comparisons is choosing the correct formula based on what you're comparing. The decision tree below walks you through the process step by step. Start by asking yourself: "Am I saying two things are equal, or that one has more or less of something?" Then determine whether you're using an adjective, adverb, noun, or verb.

This decision tree guides you from identifying the comparison type to selecting the correct formula. Start at the top and follow the branches based on your answer to each question.
Summary of comparison formulas by word type
Comparing with…Inequality (más/menos)Equality
Adjectivemás/menos + adj + quetan + adj + como
Adverbmás/menos + adv + quetan + adv + como
Nounmás/menos + noun + quetanto/a/os/as + noun + como
Verbverb + más/menos + queverb + tanto como

Worked Example — Building Comparison Sentences

Let's walk through a scenario where you need to compare two restaurants — El Rincón and La Casita — using all three comparison types. Imagine you're telling a friend about your experiences at both places.

Comparing Two Restaurants
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Step 1 — Identify what you want to compareYou want to say: (a) El Rincón's food is better than La Casita's, (b) La Casita is less expensive than El Rincón, (c) both have the same amount of seating, and (d) the service at La Casita is as fast as El Rincón's. First, classify each comparison. Sentence (a) uses an irregular comparative. Sentence (b) is inferiority. Sentences (c) and (d) are equality — but (c) compares a noun and (d) compares an adjective.
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Step 2 — Build the superiority/irregular sentenceSince "better" is an irregular form (bueno → mejor), you do not use más. Simply place mejor where the adjective would go and follow with que.
La comida de El Rincón es mejor que la comida de La Casita.
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Step 3 — Build the inferiority sentence"Less expensive" uses the standard inferiority formula: menos + caro/a + que. Since La Casita is feminine, the adjective caro becomes cara to agree with the implied noun La Casita.
La Casita es menos cara que El Rincón.
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Step 4 — Build the noun-based equality sentence"The same amount of seating" compares a noun (mesas — tables), so you use tanto/a/os/as + noun + como. Since mesas is feminine plural, tanto becomes tantas.
La Casita tiene tantas mesas como El Rincón.
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Step 5 — Build the adjective-based equality sentence"As fast" compares an adjective, so you use tan + adjective + como. The adjective rápido agrees with the subject el servicio (masculine singular), so it stays as rápido.
El servicio de La Casita es tan rápido como el de El Rincón.

Common Errors & How to Avoid Them

Even students who understand the formulas often make predictable mistakes when writing or speaking. The table below highlights the most common errors alongside the correct forms and an explanation of why the mistake happens.

Five common comparison errors and their corrections
Common ErrorCorrect FormWhy It's Wrong
Ella es más buena que él.Ella es mejor que él."Better" requires the irregular form mejor, not más buena. (Note: más buena can mean "kinder" in some contexts, but for general "better," use mejor.)
Tengo tan amigos como tú.Tengo tantos amigos como tú.When comparing nouns, use tanto/a/os/as (not tan), and it must agree with the noun in gender and number.
Hay más que 20 personas.Hay más de 20 personas.Before a number, use de instead of que.
Ella es tan alta como inteligente como María.Ella es tan alta e inteligente como María.Use one tan and one como; join multiple adjectives with y/e.
Es más grande como su hermano.Es más grande que su hermano.Inequality comparisons require que, not como. Reserve como for equality.
KEY TAKEAWAY
Think of que and como like road signs. When the road is uneven (one side is more or less), you see the que sign. When the road is level (equal), you see the como sign. Mixing them up is like driving the wrong way on a one-way street — the sentence won't make sense to a native speaker.

Connection to Advanced Structures — Superlatives & Beyond

Once you've mastered basic comparisons, you'll encounter the superlative — a structure that doesn't just compare two things, but says something is the most or least in an entire group. Superlatives build directly on the comparison structures you've learned here, so a strong grasp of comparisons is essential for moving forward. The table below shows how each comparison type connects to its superlative counterpart.

From comparisons to superlatives
Comparison (Spanish 2)Superlative (Spanish 3+)Example
más alto que (taller than)el/la más alto/a de (the tallest in)Juan es el más alto de la clase.
menos caro que (less expensive than)el/la menos caro/a de (the least expensive in)Este carro es el menos caro de todos.
mejor que (better than)el/la mejor de (the best in)Ella es la mejor de su equipo.
tan inteligente como (as smart as)No direct superlative — equality has no "most equal" formN/A

Notice that superlatives simply add a definite article (el, la, los, las) before the comparison and swap que for de. You'll also encounter the absolute superlative (-ísimo/a), which expresses an extreme degree without a specific comparison ("extremely tall" rather than "the tallest"). These advanced structures are built on the foundation you're learning right now.

Practice Problems

PROBLEM 1CONCEPTUAL
Explain the difference between tan and tanto in equality comparisons. When do you use each one, and why does tanto change form but tan does not?
PROBLEM 2BASIC
Translate the following sentence into Spanish: "The movie is more interesting than the book." (la película = the movie; interesante = interesting; el libro = the book)
PROBLEM 3INTERMEDIATE
Fill in the blanks with the correct comparison words: "Mi hermana tiene _______ (as many) clases _______ (as) yo, pero ella estudia _______ (less) _______ (than) yo."
PROBLEM 4APPLIED
You're writing a review comparing two phones for a Spanish class project. Write three comparison sentences about the phones using: (a) one superiority comparison, (b) one equality comparison with an adjective, and (c) one equality comparison with a noun. Use the following vocabulary: la pantalla (screen), rápido (fast), caro (expensive), las funciones (features).
PROBLEM 5CRITICAL THINKING
A student writes: "Mi ciudad tiene más de problemas que tu ciudad." Identify the error, explain the rule that was broken, and provide the corrected sentence. Then explain when de would actually be correct after más.

Summary — Making Comparisons in Spanish

Spanish comparisons are organized into three categories. Comparisons of superiority use más + adjective/adverb/noun + que to say something has more of a quality. Comparisons of inferiority use menos + adjective/adverb/noun + que to say something has less. Comparisons of equality use tan + adjective/adverb + como for equal qualities, and tanto/a/os/as + noun + como for equal quantities, with tanto agreeing in gender and number with the noun.

Key details to remember: the connector que is used for inequality and como is used for equality — never mix them. Before numbers, switch to más/menos de instead of que. Finally, memorize the four irregular comparativesmejor, peor, mayor, menor — which replace the entire más + adjective structure. With these formulas mastered, you're ready to express preferences, evaluate options, and make nuanced comparisons in everyday Spanish.

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