Nominalization is the process of turning a verb into a noun — converting an action (to decide, to move, to know) into a thing-word that can be the subject or object of another sentence (the decision, the movement, the knowledge). Spanish has a rich and productive nominalization system with four main suffixes (-ción/-sión, -miento, -ada/-ido, -aje) and one suffix-less route (the infinitive itself: el comer, el dormir). Each one produces a slightly different kind of noun, and choosing the right one is the difference between sounding fluent and sounding translated.
For an English speaker the central thing to internalise is that Spanish does not use the gerund (-ndo) as a noun. English eating is healthy and walking helps me think use the verb-form eating, walking as a noun. Spanish uses the infinitive in this role: comer es saludable, caminar me ayuda a pensar. The gerund (comiendo, caminando) only functions adverbially or in the progressive construction. This single fact resolves more learner errors than any other point on this page.
The infinitive as a verbal noun
The simplest and oldest way to nominalize a verb in Spanish is to use the infinitive itself, optionally with the masculine singular article el. The result is a noun that names the action as such — eating, sleeping, walking, living — without specifying anything about its result, duration, or product.
Comer despacio es bueno para la digestión.
Eating slowly is good for the digestion. — comer is the verbal noun; no article needed when it is the subject in a generic statement.
El dormir poco te está pasando factura — tienes ojeras.
The lack of sleep is catching up with you — you've got dark circles under your eyes. — el dormir with the article emphasises the activity as a concept.
Lo que me molesta es tener que esperar tantísimo en cada cita médica.
What bothers me is having to wait so long at every medical appointment. — the infinitive (tener que esperar) functions as the complement of lo que me molesta es.
The infinitive-with-article construction (el comer, el vivir) carries a slightly literary or reflective flavour — it tends to appear in essays, lyrics, and aphorisms more often than in casual speech. The bare infinitive without article (comer es saludable) is the unmarked everyday form.
Why the gerund is NOT the verbal noun
This is the most common interference error from English. The gerund comiendo, durmiendo, viviendo in Spanish is exclusively adverbial or progressive — it tells you how something is happening, or marks an action in progress. It cannot be the subject or object of a verb.
❌ Comiendo despacio es bueno para la digestión.
Calque from English 'eating slowly is good.' Spanish requires the infinitive: comer despacio es bueno.
✅ Comer despacio es bueno para la digestión.
Eating slowly is good for digestion. — the infinitive comer is the verbal noun.
The only fully accepted nominal gerund in Spanish is the lexicalised considerando in legal and bureaucratic register (los considerandos = the recital clauses of a legal document). Everything else is the infinitive.
-ción / -sión: the action and its result
Spanish -ción / -sión is the most productive nominalizing suffix and corresponds reliably to English -tion / -sion. It attaches to verbs and produces a feminine noun naming the action, the process, or the result of the action — context disambiguates.
La decisión de cerrar la fábrica ha provocado una reacción inmediata de los sindicatos.
The decision to close the factory has provoked an immediate reaction from the unions. — decisión: result of the verb decidir; reacción: action/process noun from reaccionar.
No me dieron ninguna explicación, simplemente me enviaron una notificación al móvil.
They didn't give me any explanation, they just sent a notification to my phone. — both nouns name the result of the corresponding verb.
The choice between -ción and -sión follows the verb class: -ar verbs almost always take -ción (explicar → explicación, celebrar → celebración); -dir, -der, -tir verbs often take -sión (decidir → decisión, discutir → discusión, suspender → suspensión); -ducir verbs always take -ducción (producir → producción, traducir → traducción). All -ción / -sión nouns are feminine and carry a written accent on the ó.
The -ción noun is strongly biased toward result and concrete meaning: la construcción is "the building" (a physical thing) more often than "the act of building"; la grabación is "the recording" (the file) more often than "the act of recording".
-miento: the process and the abstract state
The native Spanish nominalization suffix, contrasting with the Latinate -ción in flavour and meaning. It is masculine and tends to produce nouns naming the ongoing process or the abstract state rather than the result.
El conocimiento del idioma es fundamental para encontrar trabajo aquí.
Knowledge of the language is essential for finding work here. — conocimiento (the state of knowing) from conocer.
El movimiento feminista ha cambiado profundamente la conversación pública en España.
The feminist movement has deeply changed public conversation in Spain. — movimiento: not 'a single move' but the ongoing collective phenomenon.
El planteamiento del problema es bueno, pero la solución que propones no convence.
The way the problem is framed is good, but the solution you propose doesn't convince. — planteamiento (the framing/approach) from plantear.
Productive -miento nouns: conocer → conocimiento, sentir → sentimiento (feeling), pensar → pensamiento (thought), mover → movimiento, crecer → crecimiento (growth), seguir → seguimiento (follow-up, tracking), plantear → planteamiento (approach, framing), aburrir → aburrimiento (boredom), agradecer → agradecimiento (gratitude), tratar → tratamiento (treatment), funcionar → funcionamiento (functioning), comportar → comportamiento (behaviour).
Choosing between -ción and -miento
When a verb supports both nominalizations, the suffixes carve out different meanings. Some pairs:
- conocer → conocimiento (the state of knowing) vs cognición (the cognitive faculty, technical)
- mover → movimiento (movement, motion) vs moción (a formal motion in a meeting)
- sentir → sentimiento (a feeling, emotion) vs sensación (a sensation, perception)
- agradecer → agradecimiento (gratitude as an attitude) vs the verb itself; no -ción form
- desplazar → desplazamiento (movement, displacement) — no -ción form
When both forms exist, the -ción form is more formal/Latinate and result-biased; the -miento form is more native, process-biased, and slightly more abstract. The rule of thumb works most of the time but each pair has its own contour — learn the high-frequency ones individually.
-ada / -ido: a single instance of the action
The participial nominalizations. -ada is feminine, -ido is masculine, and both name a single occurrence of the verb's action — often physical, often punctual.
La llegada del AVE a Galicia ha cambiado la economía de Santiago.
The arrival of the AVE in Galicia has changed Santiago's economy. — llegada: a single arrival, the event from llegar.
No me deja dormir el ladrido del perro del vecino.
My neighbour's dog's barking won't let me sleep. — ladrido: an instance of barking (from ladrar).
Productive forms: llegar → llegada (arrival), salir → salida (exit, departure), entrar → entrada (entry), caer → caída (fall), subir → subida (rise, climb), bajar → bajada (descent), parar → parada (stop), mirar → mirada (look, gaze); ladrar → ladrido (bark), silbar → silbido (whistle), gemir → gemido (groan), suspirar → suspiro (sigh — note: -o not -ido here).
These nominalizations are highly concrete — they refer to physical events, sounds, or movements rather than abstractions. The plural is normal and useful: los ladridos del perro (the dog's barks), las llegadas internacionales (the international arrivals).
-aje: process or collective product
Borrowed from French -age, the suffix -aje is masculine and names either a complex process or a collective result/product.
El aterrizaje fue un poco brusco, pero llegamos sanos y salvos.
The landing was a bit rough, but we got there safe and sound. — aterrizaje: the process of landing, from aterrizar.
El peritaje del coche todavía no ha llegado a la aseguradora.
The expert assessment of the car still hasn't reached the insurer. — peritaje: the formal expert process, from peritar.
Productive forms: aterrizar → aterrizaje (landing), aprender → aprendizaje (learning), almacenar → almacenaje (storage), peritar → peritaje (expert assessment), montar → montaje (assembly, editing), rodar → rodaje (filming, shooting), abordar → abordaje (boarding, approach), anclar → anclaje (anchoring), embalar → embalaje (packaging), fichar → fichaje (signing of a player). Many -aje nouns are quite technical or domain-specific (cinema: montaje, rodaje; insurance: peritaje; aviation: aterrizaje; football: fichaje). A few high-frequency -aje nouns are unadapted French borrowings without a corresponding Spanish verb (espionaje — the verb is espiar, not *espionar; masaje — the verb masajear is back-formed from the noun).
The -aje suffix is especially productive with the process sense in modern peninsular Spanish; montaje and rodaje in film, cribaje (screening) in epidemiology, cribado / cribaje in medical contexts. The borrowing is so well-naturalised that few speakers register it as Gallicism.
Zero-derivation: when the verb stem itself is the noun
Some verb-noun pairs share their root without a visible suffix. The verb is -ar / -er / -ir, the noun is the bare stem plus a thematic vowel.
Tuvimos un viaje increíble por el norte de Portugal el verano pasado.
We had an incredible trip through northern Portugal last summer. — viaje (noun) and viajar (verb) share the root; -aje here is part of the noun, not the suffix.
El cambio de planes fue de última hora — no me dio tiempo a avisarte.
The change of plan was last-minute — I didn't have time to let you know. — cambio (noun) from cambiar (verb).
Common zero-derivations: viajar → el viaje, cambiar → el cambio, gastar → el gasto, abrazar → el abrazo, besar → el beso, bailar → el baile, cantar → el canto, correr → la corrida (a bull-run; -ida, technically participial), trabajar → el trabajo, pagar → el pago, intentar → el intento. Most of these are masculine and end in -o; a smaller group is feminine in -a (lucha from luchar, busca from buscar in the fixed expression en busca de).
Agent nominalizations (-dor, -tor): the person who does the action
Not strictly the action-noun pattern, but related: -dor / -tor takes a verb and produces the agent (the person or thing that performs the action). These are masculine for the male agent and form their feminine in -dora / -tora.
Mi vecino es un escritor bastante conocido en círculos literarios catalanes.
My neighbour is a writer fairly well known in Catalan literary circles. — escritor (agent noun) from escribir.
El ordenador portátil que me regaló mi padre se ha quedado obsoleto.
The laptop my father gave me has become obsolete. — ordenador (peninsular Spanish for 'computer', masculine) is an agent noun from ordenar 'to put in order, to compute'; the suffix -dor names not just people but also machines that perform the action.
Productive forms: trabajar → trabajador, cantar → cantante (note: -ante, not -dor), escribir → escritor (note: irregular stem), conducir → conductor, pintar → pintor, jugar → jugador, programar → programador. The agent-noun system is treated more fully on the Sufijos de sustantivos page.
Common Mistakes
❌ Caminando me ayuda a pensar.
Calque from English 'walking helps me think'. Spanish gerunds (-ndo) are not verbal nouns; use the infinitive.
✅ Caminar me ayuda a pensar.
Walking helps me think.
❌ El comiendo en familia es importante.
The gerund cannot follow the article el to form a verbal noun. The infinitive does that work: el comer.
✅ El comer en familia es importante.
Eating as a family is important.
❌ La conocimiento del idioma es fundamental.
-miento nouns are masculine. The article is el, not la.
✅ El conocimiento del idioma es fundamental.
Knowledge of the language is fundamental.
❌ El moción del balón fue muy rápido.
Moción exists but means 'a formal motion in a meeting'. For physical motion, use movimiento.
✅ El movimiento del balón fue muy rápido.
The movement of the ball was very fast.
❌ La aterrizaje fue brusca.
-aje nouns are masculine. El aterrizaje, el peritaje, el rodaje, el aprendizaje — all masculine despite the -e ending.
✅ El aterrizaje fue brusco.
The landing was rough.
❌ Su comportación en la reunión fue muy mala.
*comportación does not exist. The -miento form from comportarse is comportamiento. Not every verb supports -ción nominalization.
✅ Su comportamiento en la reunión fue muy malo.
His behaviour in the meeting was very bad.
Key Takeaways
- The infinitive itself is the Spanish verbal noun — comer es saludable, el dormir, vivir aquí. The gerund (-ndo) is adverbial only and never functions as a noun. This is the single most important error to unlearn from English.
- The four productive nominalizing suffixes carve out different meanings: -ción/-sión (feminine, Latinate, result-biased, attaches mostly to -ar verbs), -miento (masculine, native, process-biased, attaches mostly to -er/-ir verbs), -ada/-ido (single concrete instance), -aje (process or collective product, masculine, slightly technical).
- When a verb supports both -ción and -miento, the -ción form is more formal and result-biased (moción is a formal motion); the -miento form is more native and abstract-process-biased (movimiento is physical motion).
- Gender is fully predictable from the suffix: -ción/-sión/-dad → feminine, -miento/-aje/-o → masculine, -ada → feminine, -ido → masculine.
- Zero-derivation is also productive: cambiar → el cambio, gastar → el gasto, abrazar → el abrazo. The thematic vowel switches to -o (masculine) for most verbs.
- Not every verb supports every suffix. Comportar gives comportamiento, not *comportación. Mover gives both movimiento and moción, with very different meanings. Test the form before producing it; do not over-generalise.
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Start learning Spanish→Related Topics
- Sufijos de sustantivos: -ción, -dad, -mientoB1 — The productive noun-forming suffixes of Spanish — what each one does (action, quality, process, agent), what gender it produces, and how to predict the noun from the underlying verb, adjective, or root.
- Prefijos: des-, in-, re-, pre-, pos-B1 — The productive Spanish prefixes — negation (in-/im-/i-, des-, anti-), spatial and temporal (ante-, pre-, pos-, sub-, super-, retro-), quantity (bi-, tri-, multi-, mono-), intensifier (super-, archi-, hiper-, mega-, re-), and the Aktionsart prefixes (a-, en-/em-) that turn adjectives into verbs.
- Parasíntesis y formación inversaC1 — Two non-obvious word-formation processes in Spanish: parasynthesis (simultaneous prefix + suffix attached to a root that does not exist as a word on its own — acercar from cerca, enrojecer from rojo, empedrar from piedra) and backformation (deriving a simpler word from a more complex one — legislar back-formed from legislador, autoestopear from autoestop). Both processes are easy to miss because the morphology looks ordinary; the diagnostic is the missing intermediate stage.
- Sustantivos abstractosB1 — How Spanish builds abstract nouns from adjectives, verbs, and other nouns — the suffix system (-dad, -ez, -ura, -ía, -ismo, -ción, -miento) and the article rules that catch English speakers off guard.
- El infinitivo como sustantivoB1 — How Spanish turns a verb into a noun — fumar es malo, me gusta cocinar, el comer demasiado engorda — and why the gerund cannot do this job.
- Usos del gerundioA2 — The four real jobs of the Spanish gerundio — the progressive with estar, manner, simultaneous action, and absolute clauses — and the three jobs it cannot do, which English-speaking learners constantly try to give it.