Negative and formal imperatives

What are negative and formal imperatives in Spanish?

The imperative (the "command") is the verb form Spanish uses to tell someone to do something, to ask for something, or to give instructions. Two important, related ideas are:

- Negative imperatives: commands that tell someone NOT to do something (prohibitions). Example: No fumes. (Don’t smoke.)
- Formal imperatives: commands addressed to people you speak to with usted or ustedes (polite or respectful forms). Example: Hable usted más despacio. (Please speak more slowly.)

Negative commands and formal commands overlap: both kinds of commands use the present subjunctive forms. In short: formal commands = present subjunctive (usted/ustedes); negative commands = no + present subjunctive (for all people except affirmative tú/vos/vosotros). Below you will find clear rules, formation steps, many examples, and warnings about common mistakes.

When do I use negative commands?

Negative commands are used whenever you want to tell someone not to do something: to forbid, to warn, or to give a negative instruction.

Examples (Spanish → English):
- No fumes. → Don’t smoke. (tú negative)
- No hable por teléfono durante la reunión. → Don’t use your phone during the meeting. (usted negative)
- No coman en la biblioteca. → Don’t eat in the library. (ustedes negative)
- No lo digas a nadie. → Don’t tell anyone.

When do I use formal commands (usted / ustedes)?

Use usted/ustedes commands when you want to be polite, respectful, or formal: with strangers in formal contexts, with elders, with customers, or in written instructions aimed at a general audience (e.g., signs and manuals).

Examples:
- Hable más despacio, por favor. → Speak more slowly (to one person formally).
- Por favor, entren por la puerta principal. → Please enter through the main door (to several people formally).

Note: In many parts of Latin America, usted is used more often than in Spain; in Spain you will also meet vosotros forms (informal plural) instead of ustedes.

How do I form formal (usted/ustedes) commands?

Step-by-step: use the present subjunctive

1. Start with the present tense yo form: yo hablo, yo como, yo escribo.
2. Drop the -o: habl-, com-, escrib-.
3. Add the present subjunctive endings for usted (3rd person singular) or ustedes (3rd person plural):
- For -ar verbs: add -e (usted) / -en (ustedes) → hablar → hable / hablen.
- For -er and -ir verbs: add -a (usted) / -an (ustedes) → comer → coma / coman; escribir → escriba / escriban.

Examples:
- hablar: (yo hablo) → hable (usted), hablen (ustedes).
- Hable más despacio, por favor. → Please speak more slowly (usted).
- Hablen uno a la vez. → Speak one at a time (ustedes).

- comer: (yo como) → coma (usted), coman (ustedes).
- Coma la sopa. → Eat the soup (usted).
- Coman ahora. → Eat now (ustedes).

- escribir: (yo escribo) → escriba, escriban.
- Escriba su nombre aquí. → Write your name here (usted).

Negative formal commands

To form a negative formal command, put no before the present subjunctive form.

Examples:
- No hable durante la película. → Don’t speak during the movie. (usted)
- No coman en la sala de lectura. → Don’t eat in the reading room. (ustedes)
- No se levante todavía. → Don’t stand up yet. (usted)

How do I form negative commands in general (all persons)?

Important rule: Negative commands for tú, usted, nosotros, vosotros, and ustedes use the present subjunctive.

- Negative tú = no + tú present subjunctive.
- Example: No hables ahora. (Don’t speak now.) [compare Affirmative tú: Habla ahora.]
- Negative usted = no + usted present subjunctive.
- Example: No hable ahora. (Don’t speak now — formal.)
- Negative nosotros = no + nosotros subjunctive.
- Example: No salgamos todavía. (Let’s not leave yet.)
- Negative vosotros = no + vosotros subjunctive.
- Example (Spain): No habléis tan alto. (Don’t speak so loudly.)
- Negative ustedes = no + ustedes subjunctive.
- Example: No hablen durante la prueba. (Don’t talk during the test.)

Compare affirmative vs negative for the most common persons:
- Tú affirmative: use the familiar imperative (often the 3rd person singular of the present indicative for regular verbs):
- Habla más fuerte. (Speak louder.)
- Haz la tarea. (Do the homework.) — note irregulars below.
- Tú negative: use subjunctive: No hables, No hagas.
- Usted affirmative: use subjunctive: Hable (usted). Negative: No hable.
- Ustedes affirmative: use subjunctive plural: Hablen. Negative: No hablen.
- Vosotros affirmative (Spain): infinitive minus -r + -d → hablad, comed, escribid. Negative vosotros: use subjunctive: no habléis, no comáis, no escribáis.

Pronoun placement: where do object and reflexive pronouns go?

Basic rule
- With negative commands, pronouns go BEFORE the verb (and after no):
- No lo hagas. → Don’t do it. (tú)
- No me lo diga. → Don’t tell me it. (usted)
- No os levantéis. → Don’t get up (you plural informal, Spain).

- With affirmative commands, pronouns ATTACH to the END of the verb (they become one word). When you attach pronouns, you may need to add a written accent to keep the original stress.
- Escríbelo. → Write it. (tú) / Escríbalo. → Write it (usted).
- Dímelo. → Tell it to me. (tú)
- Dígamelo. → Tell it to me. (usted)
- Póngaselo. → Put it on (for yourself). (usted)

Order when two pronouns are used
- Indirect object pronoun (me, te, le → se, nos, os, les → se) comes before the direct object pronoun (lo, la, los, las).
- Give it to me (usted): Démelo. (dé + me + lo → démelo)
- Tell it to her (usted): Dígaselo. (diga + se + lo -> dígaselo) Note: le/les change to se before lo/la/los/las.

Examples showing the difference
- Affirmative (attach): Dímelo ahora. → Tell me it now. (tú)
- Negative (separate): No me lo digas ahora. → Don’t tell me it now. (tú)

- Affirmative formal (attach): Dígamelo, por favor. → Tell it to me, please. (usted)
- Negative formal (separate): No me lo diga, por favor. → Please don’t tell me it. (usted)

Irregulars and spelling changes you must know

Common irregular formal commands (present subjunctive forms)
- dar → (usted) dé, (ustedes) den
- estar → (usted) esté, (ustedes) estén
- ir → (usted) vaya, (ustedes) vayan
- saber → (usted) sepa, (ustedes) sepan
- ser → (usted) sea, (ustedes) sean

Examples:
- Sea puntual, por favor. → Be punctual (usted).
- No vaya solo. → Don’t go alone (usted).
- Esté atento a la señal. → Be attentive to the signal (usted).

Examples:
- Di la verdad. → Tell the truth. (tú)
- Haz tu cama. → Make your bed. (tú)
- Ven aquí. → Come here. (tú)

Spelling (orthographic) changes to keep pronunciation
When a verb has a spelling change in the yo form of the present (buscar → busco, llegar → llego, empezar → empiezo), those changes usually also appear in the subjunctive/commands.
- -car → -que (buscar → busque, busquen)
- -gar → -gue (pagar → pague, paguen)
- -zar → -ce (empezar → empiece, empiecen)

Examples:
- Busque la palabra en el diccionario. → Look up the word in the dictionary. (usted)
- No pague todavía. → Don’t pay yet. (usted)
- Empiece cuando esté listo. → Start when you are ready. (usted)

Stem-changing verbs in commands
Verbs with stem changes in the present will typically show the same stem change in the subjunctive/command forms:
- pensar → piense / piensen (e → ie)
- volver → vuelva / vuelvan (o → ue)
- pedir → pida / pidan (e → i)
- dormir → duerma / duerman (o → ue)

Examples:
- Piense antes de hablar. → Think before you speak. (usted)
- No pidan ayuda sin preguntar. → Don’t ask for help without asking. (ustedes)

Common mistakes and how to avoid them

- Using the present indicative instead of the subjunctive for negative or formal commands:
- WRONG: No hablas. (Incorrect as a command)
- RIGHT: No hables. (tú negative)
- RIGHT (formal): No hable. (usted negative)

- Attaching pronouns to negative commands: pronouns go before negative commands, not attached.
- WRONG: No compreslo. → RIGHT: No lo compres.

- Forgetting to change le/les to se before lo/la/los/las when attaching pronouns.
- WRONG: Dile lo. → RIGHT: Dí-selo / Díselo (attach: díselo)

- Missing accents when pronouns are attached to affirmative commands.
- WRONG: Dimelo → RIGHT: Dímelo
- WRONG: Pongaselo → RIGHT: Póngaselo
Accent marks are needed when the added pronouns change the stress of the original verb form.

- Confusing formal and informal (usted vs tú). When in doubt, use usted in formal situations and with people you don’t know.

Quick reference cheat sheet

- Affirmative tú: informal special forms (often 3rd person singular indicative) → habla, come, escribe. (Irregulars: di, haz, ve, pon, sal, sé, ten, ven)
- Negative tú: no + present subjunctive (tú) → no hables, no comas, no escribas.
- Affirmative usted: present subjunctive (usted) → hable, coma, escriba.
- Negative usted: no + present subjunctive (usted) → no hable, no coma, no escriba.
- Affirmative ustedes: present subjunctive plural → hablen, coman, escriban.
- Negative ustedes: no + present subjunctive plural → no hablen, no coman, no escriban.
- Affirmative vosotros (Spain): infinitive minus -r + -d → hablad, comed, escribid.
- Negative vosotros (Spain): no + present subjunctive vosotros → no habléis, no comáis, no escribáis.

Short, practical example set (Spanish → English)

- Tú affirmative: Haz la tarea. → Do the homework.
- Tú negative: No hagas la tarea. → Don’t do the homework.

- Usted affirmative: Hable con el gerente. → Speak with the manager (formal).
- Usted negative: No hable durante la presentación. → Don’t speak during the presentation.

- Ustedes affirmative: Entren juntos. → Enter together.
- Ustedes negative: No entren hasta que yo diga. → Don’t enter until I say.

- Pronouns (affirmative vs negative):
- Affirmative (tú): Dímelo ahora. → Tell me it now.
- Negative (tú): No me lo digas ahora. → Don’t tell me it now.

- Combined pronouns (usted):
- Affirmative: Dígamelo. → Tell it to me (formal).
- Negative: No me lo diga. → Don’t tell it to me (formal).

Glossary (short)</b]

- Imperative: The verb form used to give orders, requests, or instructions (commands).
- Negative imperative: A command that forbids or tells someone not to do something (formed with no + subjunctive for most persons).
- Formal commands: Commands that use usted/ustedes forms (polite/respectful). These use the present subjunctive.
- Present subjunctive: A verb mood used for doubts, wishes, and all negative commands; it is the basis for formal commands.
- Direct object pronoun: lo, la, los, las (answers what?).
- Indirect object pronoun: me, te, le (→ se), nos, os, les (answers to whom?/for whom?). When le/les appear with lo/la/los/las they change to se.

If you want, I can give a concise printable cheat-sheet of common formal/negative command forms or show more examples with your favorite verbs.