Impersonal Commands: The 'No + Infinitive' Rule
Grammar Rule in 30 Seconds
Use 'No' + infinitive to give general, impersonal instructions that apply to everyone, like signs or manuals.
- Use for general prohibitions: 'No fumar' (No smoking).
- Avoid specific subjects: It is not directed at 'you' specifically.
- Keep it brief: Only use the infinitive form of the verb.
Overview
The Spanish infinitive command, most commonly seen in prohibitions like No tocar on a museum sign, is a grammatical structure that conveys a depersonalized, universal instruction. Unlike the standard imperative forms you’ve mastered (e.g., tú no toques, usted no toque), which are directed at a specific individual, this construction uses the verb's base infinitive form (-ar, -er, -ir). This seemingly simple change removes the speaker-listener dynamic entirely, transforming a personal order into a standing rule.
This pattern is the bedrock of public instructions, technical writing, and user interfaces in Spanish. It communicates a directive that applies to everyone and no one simultaneously. Think of it as the voice of a system, a manual, or an environment rather than a person.
At the C1 level, mastering this structure is about more than just understanding signs; it's about controlling register and social distance. You learn to differentiate between telling a specific person what to do and establishing a general protocol. It’s the difference between a friend saying No fumes aquí and a sign stating No fumar, and understanding the subtle but critical authority each one implies.
While its most frequent use is for negative prohibitions, the infinitive also appears in affirmative contexts, such as in recipes (Mezclar los ingredientes) or the colloquial Spanish call to action, ¡A + infinitivo! (¡A comer!). Understanding its function is key to both producing formal, professional Spanish and interpreting a wide range of everyday messages.
How This Grammar Works
caminar isn't just the verb 'to walk'; it can also represent the abstract concept of walking. When a sign says No caminar sobre el césped, it is essentially stating, "The act of walking on the grass is prohibited here." It’s not an order from one person to another but a declaration of a rule inherent to the location.haz la cama carry an implicit subject (tú). The infinitive command, by contrast, has no grammatical subject.tú, usted, vosotros, or ustedes. The instruction is a broadcast, not a targeted message. It’s the default setting for rules that are always in effect.se is attached directly to the infinitive. For instance, in a public restroom, you might see Lavarse las manos. The se here is impersonal, representing a generic "oneself." It’s not te or le because the command isn't directed at a specific 'you'.se would be a significant error, as it would remove the reflexive nature of the action.se construction. While both convey impersonality, they do so with a different focus.No fumar | The action itself. A direct, concise rule or prohibition. Reads like a label or headline. |se | Se prohíbe fumar | The act of prohibiting. A more formal, official statement that a rule exists. Focuses on the authority. |No fumar is the rule. Se prohíbe fumar is a sentence describing the rule. The infinitive is more direct and modern, making it perfect for signs and digital interfaces, while the passive se often feels more legalistic or bureaucratic.Formation Pattern
no before the verb's infinitive form.
No + Infinitivo
No correr (No running), No usar el teléfono móvil (Do not use mobile phones).
Infinitivo
Paso 1: Abrir la caja, Agitar antes de usar.
se must be attached to the end of the infinitive.
(No) + Infinitivo + se
No bañarse (No bathing), Abrocharse el cinturón (Fasten your seatbelt).
(No) + Infinitivo + [Object Pronoun(s)]
Consumirlo antes de la fecha indicada (Consume it before the indicated date), No tocarlo (Do not touch it).
No dárselo al conductor (Do not give it to the driver).
A + Infinitivo: This idiomatic structure is used to signal the immediate start of a collective action. It's an energetic, social command.
¡A + Infinitivo!
¡A comer! | Time to eat! / Let's eat! |
¡A bailar! | Let's dance! |
¡A trabajar! | Let's get to work! |
When To Use It
- Public Signage and Notices: This is the primary context. The goal is to communicate a rule to anyone who enters the space.
Empujar(Push)No pasar(Do not enter)Mantener la distancia de seguridad(Maintain a safe distance)
- Technical Manuals, Recipes, and Procedures: The infinitive provides clear, objective, and sequential steps. It creates a professional, instructional tone.
1. Insertar la batería. 2. Pulsar el botón de encendido.Cortar las verduras en juliana. A continuación, añadir el aceite.
- Digital and UI/UX Copy: Infinitives are the standard for buttons, links, and menu items in software and on websites. They are concise and action-oriented.
Guardar(Save)Hacer clic aquí(Click here)Eliminar cuenta(Delete account)
- Laws, Regulations, and Formal Rules: The infinitive is used to state obligations and prohibitions in a formal, binding manner.
Pagar los impuestos en el plazo establecido.No exceder el límite de velocidad.
- Headlines, Mottos, and Social Media Captions: The infinitive can create a powerful, slogan-like effect. It presents an action or idea as a general principle or lifestyle choice.
Vivir el momento.Reír más, preocuparse menos.
Common Mistakes
- 1. Using it for Direct, Personal Commands: Telling your partner
No comer mi postreis a classic learner error. It sounds robotic and impersonal, as if you are a signpost in your own home. The correct form for a direct command is the imperative:No (te) comas mi postre. Using the infinitive in a personal context can sound strange, rude, or even jokingly distant, depending on the tone.
- 2. Incorrect Pronoun Placement: Pronouns must be appended to the infinitive. A common mistake is to place them before, mimicking other verb tenses.
- Incorrect:
No se sentar aquí. - Correct:
No sentarse aquí. - Incorrect:
Hay que lo hacer. - Correct:
Hay que hacerlo.
- 3. Using it as a Polite Request: Approaching a waiter and saying
Traer la cuentais too blunt. It's a command, not a request. In this situation, you need a more conventionally polite form, such as the conditional (¿Podría traernos la cuenta?) or a question (¿Nos trae la cuenta, por favor?). The infinitive lacks the social softeners required for service interactions.
- 4. Misinterpreting the Colloquial Plural in Spain: In parts of Spain, you may hear the infinitive used in place of the
vosotrosimperative (e.g., a teacher telling a noisy class¡Callar!instead of¡Callad!). While this is a documented colloquialism, it's considered substandard by the Real Academia Española (RAE). As a learner, you should avoid replicating this. Stick to the standard imperative forms (callad,comed) for direct plural commands until you have a native-like feel for informal registers.
- 5. Confusing the
¡A + Infinitivo!Register: This form is exclusively informal and social. Saying¡A trabajar!with enthusiasm upon starting a new job might be misinterpreted as you trying to command your new colleagues. It implies an existing familiarity and a shared context that is absent in formal or new environments.
Real Conversations
Beyond signs and manuals, you'll encounter the infinitive command in modern, everyday communication where it serves specific stylistic purposes.
- Texting & Social Chats: It's often used to propose a plan or initiate an activity within a group. It feels less bossy than a direct command.
- Friend A to group chat: Chicos, el tren sale en una hora. ¡A prepararse! (Guys, the train leaves in an hour. Time to get ready!)
- Friend B: Recibido. Terminar mi café y salgo. (Got it. I'll finish my coffee and head out.) Note the stylistic use of the infinitive to mean 'I will finish...'
- Social Media Captions: It's very popular for creating a reflective or motivational tone, presenting actions as life philosophies.
- On an Instagram post of someone hiking: Respirar hondo y seguir adelante. (Breathe deep and keep moving forward.)
- A Twitter/X bio: Aprender, crear, compartir. (To learn, to create, to share.)
- Joking or Ironic Use at Home: A native speaker might intentionally use the infinitive to sound like a formal notice, creating a humorous, mock-authoritative tone.
- A roommate puts a sticky note on the fridge: Normativa oficial del frigorífico: 1. No tocar el yogur de fresa. 2. Reponer la leche. El incumplimiento será sancionado. (Official refrigerator regulations: 1. Do not touch the strawberry yogurt. 2. Replace the milk. Non-compliance will be penalized.)
Quick FAQ
No fumar more polite than No fume?It’s not about politeness but about distance and directness. No fume is a direct command to a specific person (usted), which is polite but personal. No fumar is completely impersonal; it’s a neutral statement of a rule that applies to the environment itself. In many contexts, this neutrality is preferred as it feels less confrontational.
Yes, but only in a specific way. It's perfect for outlining steps or procedures within the body of the email. For example: "The next steps are: 1. Descargar el documento adjunto. 2. Rellenar los campos obligatorios. 3. Enviar el formulario antes del viernes." However, for the main request of the email, use standard polite phrasing like Le ruego que revise... or ¿Podría confirmar...?
a in ¡A callar!?The a in the ¡A + Infinitivo! construction is an idiomatic marker. It functions as an exhortation, signaling the immediate start of a collective action. Think of it as meaning "Let's get to the action of..." or "It's time for...". It adds a layer of energy, immediacy, and often impatience.
No estacionar vs. Se prohíbe estacionar?Both are impersonal, but they frame the message differently. No estacionar is a direct, concise command focused on the action. Se prohíbe estacionar is a more formal, passive statement focused on the authority that forbids the action. For a quick reference:
No estacionar | The prohibited action | Road signs, app notifications |Se prohíbe estacionar | The rule or law itself | Legal ordinances, official building notices |Absolutely. The negative form is often the first one learners notice, but the affirmative is just as common for indicating a required action. Empujar (Push) and Tirar (Pull) on doors are classic examples. Product labels use it frequently: Conservar en lugar fresco y seco (Store in a cool, dry place).
Impersonal Infinitive Formation
| Negation | Infinitive Verb | Example |
|---|---|---|
|
No
|
fumar
|
No fumar
|
|
No
|
entrar
|
No entrar
|
|
No
|
comer
|
No comer
|
|
No
|
beber
|
No beber
|
|
No
|
escribir
|
No escribir
|
|
No
|
salir
|
No salir
|
Meanings
This structure creates an impersonal command, often used in public signage, manuals, or general rules, where no specific person is addressed.
Public Prohibition
Used on signs to forbid an action in a public space.
“No pisar el césped.”
“No estacionar aquí.”
Instructional Manuals
Used in step-by-step guides to warn the user.
“No abrir la tapa mientras esté caliente.”
“No mojar el dispositivo.”
General Advice
Giving a broad, non-personal piece of advice.
“No olvidar las llaves.”
“No perder la esperanza.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Standard
|
No + Infinitive
|
No fumar
|
|
Reflexive
|
No + Infinitive + se
|
No preocuparse
|
|
With Object
|
No + Infinitive + lo/la
|
No tocarlo
|
|
Complex
|
No + Infinitive + preposition
|
No entrar en pánico
|
|
Advice
|
No + Infinitive
|
No olvidar
|
|
Warning
|
No + Infinitive
|
No tocar
|
Formality Spectrum
Prohibido fumar. (Public space)
No fumar. (Public space)
No fumes. (Public space)
Ni se te ocurra fumar. (Public space)
Impersonal Command Usage
Public
- No fumar No smoking
Manuals
- No abrir Do not open
Advice
- No olvidar Do not forget
Examples by Level
No fumar.
No smoking.
No entrar.
Do not enter.
No tocar.
Do not touch.
No correr.
Do not run.
No estacionar aquí.
Do not park here.
No tirar basura.
Do not litter.
No usar el móvil.
Do not use the mobile.
No hablar alto.
Do not speak loudly.
No olvidar traer el pasaporte.
Do not forget to bring the passport.
No abrir la caja antes de tiempo.
Do not open the box ahead of time.
No juzgar a los demás.
Do not judge others.
No dejar objetos de valor en el coche.
Do not leave valuables in the car.
No exceder la velocidad permitida.
Do not exceed the permitted speed.
No realizar cambios sin autorización.
Do not make changes without authorization.
No subestimar la importancia de la preparación.
Do not underestimate the importance of preparation.
No perder de vista el objetivo principal.
Do not lose sight of the main goal.
No incurrir en gastos innecesarios.
Do not incur unnecessary expenses.
No omitir ninguna información relevante.
Do not omit any relevant information.
No ceder ante las presiones externas.
Do not yield to external pressures.
No malinterpretar las intenciones del autor.
Do not misinterpret the author's intentions.
No contravenir las disposiciones vigentes.
Do not contravene the current provisions.
No soslayar la complejidad del fenómeno.
Do not overlook the complexity of the phenomenon.
No convalidar prácticas poco éticas.
Do not validate unethical practices.
No desestimar las advertencias previas.
Do not dismiss previous warnings.
Easily Confused
Learners mix up personal commands with impersonal ones.
Both are used for signs.
Both are impersonal.
Common Mistakes
No fumas
No fumar
No tú fumar
No fumar
No fumarás
No fumar
No fumaría
No fumar
No entres
No entrar
No se fumar
No fumar
No fumarlo
No fumar
No se debe fumar
No fumar
No fumaría aquí
No fumar aquí
No se puede fumar
No fumar
No se proceda a fumar
No fumar
No se ha de fumar
No fumar
No se permite fumar
No fumar
Sentence Patterns
No ___ aquí.
Por favor, no ___ el equipo.
No ___ sin autorización previa.
Es vital no ___ las advertencias.
Real World Usage
No estacionar.
No mojar.
No olvidar ser feliz.
No tocar.
No hablar.
No usar el móvil.
Keep it short
Don't use for friends
Use for signs
Tone matters
Smart Tips
Always use the infinitive for maximum clarity.
Use the infinitive to keep instructions consistent.
Use the infinitive to sound objective.
Add 'Favor de' before the structure.
Pronunciation
Stress
The stress remains on the final syllable of the infinitive.
Falling
No fu-MAR ↓
Finality and authority.
Memorize It
Mnemonic
Think of a 'No' sign on a wall; the verb stays in its 'infinite' (infinitive) state because it never changes.
Visual Association
Imagine a giant red circle with a slash through it, and inside is the verb in its dictionary form, frozen in time.
Rhyme
No change to the verb, keep it as you see, just add 'No' for the world to agree.
Story
You walk into a library. You see a sign: 'No hablar'. You want to eat, but a sign says: 'No comer'. You want to run, but a sign says: 'No correr'. You realize the infinitive is the king of the library.
Word Web
Challenge
Walk around your house and label 5 things with a 'No + Infinitive' sticky note (e.g., 'No tocar' on the TV).
Cultural Notes
Very common on signs. Often paired with 'Prohibido'.
Used in manuals and signs. Sometimes softened with 'Favor de no...'.
Used similarly to Spain. Very direct.
The use of the infinitive as an imperative is a common feature in many Romance languages.
Conversation Starters
¿Qué dice el cartel de la entrada?
Dame una regla para esta clase.
¿Cómo escribirías una advertencia para un manual?
Analiza el uso de prohibiciones en espacios públicos.
Journal Prompts
Common Mistakes
Test Yourself
___ fumar.
Which is correct for a sign?
Find and fix the mistake:
No entras aquí.
No hables (to a person) -> ?
Can you use this for personal commands?
Sign in a park: ___ flores.
No / tocar / aquí
What is the infinitive of 'fumas'?
Score: /8
Practice Exercises
8 exercises___ fumar.
Which is correct for a sign?
Find and fix the mistake:
No entras aquí.
No hables (to a person) -> ?
Can you use this for personal commands?
Sign in a park: ___ flores.
No / tocar / aquí
What is the infinitive of 'fumas'?
Score: /8
Practice Bank
10 exercisesDo not enter.
bien / huevos / batir / los
Select the colloquial call to action:
Para abrir el paquete, ___ (cortarlo) por la línea.
Botón: Guardas
Match the scenarios:
___ (No / Gritar) en la biblioteca.
Choose the impersonal sign:
Añadirlo el detergente ahora.
Wait five minutes.
Score: /10
FAQ (8)
No, it's too impersonal. Use the imperative instead.
No, it stays in the infinitive form.
It's direct, but not necessarily rude in a public context.
Yes, 'Por favor, no fumar' is common.
Attach the pronoun: 'No preocuparse'.
Yes, they are very similar.
Because it doesn't target a specific person.
Only if you are listing rules.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Ne pas + infinitif
The placement of 'pas' is different.
Nicht + infinitive
German word order is more rigid.
Verb + -na
It is a suffix, not a separate word.
La + jussive
Arabic conjugates the verb.
Bu yao + verb
Chinese verbs do not conjugate.
No + infinitive
None.
Learning Path
Prerequisites
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