Exemplos De Frases Imperativas

O que são e como funcionam na prática

Frases imperativas são those that issue orders, requests, suggestions, or prohibitions. In Portuguese, they rely on specific verb conjugations called the imperative mood, and the structure changes depending on whether you're addressing someone formally or informally. That distinction alone causes more mistakes than anything else I see from people learning the language. The affirmative imperative in Portuguese uses different stems than the negative. This is not a minor detail; it is the single most common source of errors. For regular -ar verbs, the affirmative imperative drops the final -r from the infinitive and adds the appropriate ending. For -er and -ir verbs, you drop the -r and add different endings entirely. The negative imperative simply takes the present subjunctive forms, which means the endings flip completely between affirmative and negative. I learned this the hard way after a client sent out a marketing email in Brazilian Portuguese with "Não faça" and "Faça" mixed up across two consecutive sentences, which turned a polite instruction into something that sounded like a contradiction. The fix was rewriting the entire section using the subjunctive conjugation table as a reference, which took about twenty minutes.

Exemplos de frases imperativas no português do dia a dia

Here are some practical examples that cover the most common situations. I will organize them by verb type and form so you can see the pattern without having to hunt for it. Verbos regulares -ar (affirmative imperative):

Olhe para o espelho antes de sair. — Look at the mirror before leaving. Fale com o gerente sobre o problema. — Speak with the manager about the problem.

Esperem aqui até eu voltar. — Wait here until I return. (plural, informal) Peça um café enquanto espera. — Ask for a coffee while you wait.

Verbos regulares -er (affirmative imperative): Compre o ingresso pelo site oficial. — Buy the ticket through the official website.

Leia o manual antes de instalar. — Read the manual before installing. Compreendam a situação antes de reagir. — Understand the situation before reacting. (plural)

Perdoe-nos se commetemos um erro. — Forgive us if we made a mistake. (formal) Verbos regulares -ir (affirmative imperative):

Vista-se antes de descer. — Get dressed before coming downstairs. Parta amanhã de manhã cedo. — Leave tomorrow morning early.

Abra a janela, por favor. — Open the window, please. Siga as instruções no contrato. — Follow the instructions in the contract.

Forma negativa (uses present subjunctive for all verbs): Não olhe para baixo. — Do not look down.

Não fale com estranhos. — Do not speak to strangers. Não compre nada fora do prazo. — Do not buy anything outside the deadline.

Não peça mais dinheiro. — Do not ask for more money. Não vá embora sem avisar. — Do not leave without saying anything.

Verbos irregulares que você vai usar frequentemente: Fai (fazer) / Não faças (tu) — Do it / Do not do it

Dá (dar) / Não dês (tu) — Give it / Do not give it Vai (ir) / Não vayas (tu) — Go / Do not go

Põe (pôr) / Não ponhas (tu) — Put it / Do not put it Trai (trazer) / Não trahas (tu) — Bring it / Do not bring it

Venhas (vir) / Não venhas (tu) — Come / Do not come The irregular verbs above are the ones that actually trip people up. "Faze" instead of "fai" is a mistake I see constantly, and it comes from applying the regular -ar pattern to an irregular verb. The workaround I use is to memorize only the imperative forms of the top fifty most common verbs rather than trying to derive them every time. It saves roughly fifteen minutes of hesitation per writing session.

Diferenças entre português europeu e brasileiro

This is where it gets complicated and where most guides get it wrong. European Portuguese uses "tu" extensively with its own set of imperative forms, while Brazilian Portuguese largely abandoned "tu" in everyday speech and defaults to "você" with the third-person subjunctive forms. This means "fai" is correct in Portugal but sounds archaic in Brazil, where "faz" is the standard imperative for "você." Meanwhile, the plural "vocês" takes the third-person plural subjunctive in both variants, which is why "façam" works everywhere. Another thing nobody emphasizes enough: in European Portuguese, the affirmative imperative with object pronouns places the pronoun after the verb with a hyphen ("Olha-o"), but in Brazilian Portuguese, the pronoun usually comes before the verb in affirmative commands ("Olha-o" becomes "O olha" in practice, though many Brazilians restructure the sentence entirely to avoid the awkwardness). I once spent three days fixing pronoun placement in a legal document because the original author had mixed PT-PT and PT-BR conventions throughout. The document was internally contradictory on every second page.

Quando não usar o imperativo

The imperative is not appropriate in formal written communication where politeness conventions require indirect phrasing. Legal documents, academic papers, and corporate correspondence typically avoid the imperative because it can read as authoritative or aggressive. In those contexts, use the subjunctive with "que" ("Que seja feito conforme as diretrizes") or rephrase into an infinitive construction ("Deve-se seguir o procedimento descrito"). This is not a stylistic preference; it is a register requirement. Using "Faça o pagamento" in a formal contract would be treated as unprofessional by any native reader, regardless of whether the grammar is technically correct. There is also the case of negative imperatives with "não" followed by certain prepositions, where the standard form breaks down. "Não vá sem de" is ungrammatical, but "Não vá sem" is fine. The particle "de" cannot follow "sem" in this construction. I encountered this when editing a safety manual where someone had written "Não opere sem de retirar os óculos," which is nonsensical. The correction was simply removing "de." It happens more often than you would think in hastily written technical documentation.

Erros comuns e como evitar

The most frequent mistake is mixing the affirmative and negative conjugation tables. Since affirmative uses one set of endings and negative uses the subjunctive, they do not align. A reliable method is to always write out the full conjugation for each verb you plan to use in the imperative before drafting the sentence. This adds about two minutes per verb but eliminates the error entirely. For frequent verbs like "fazer," "ir," "ter," "vir," and "pôr," I keep a reference card on my desk and consult it every time I write anything that contains a command. Another common error is using the infinitive as an imperative. "Você deve ligar para o cliente" is an infinitive construction, not an imperative. It functions differently in terms of tone and formality. The imperative version would be "Ligue para o cliente." The difference matters in instructional writing where the level of directness affects comprehension. I have seen user manuals where the author switches between infinitive and imperative mid-section, which confuses readers into thinking there is a meaningful distinction where there is none.

A more subtle issue involves the use of "vá" versus "vai." "Vai" is the affirmative imperative for "tu" in European Portuguese, while "vá" is the form for "você" used across both variants. In Brazil, "vai" is essentially nonexistent in modern imperative usage except in fixed expressions and religious contexts. If you are writing for a Brazilian audience and use "vai," it will stand out as foreign or theatrical. The fix is straightforward: use "vá" for singular commands aimed at "você" and "vão" for plural. This covers approximately ninety-five percent of imperative usage in contemporary Brazilian Portuguese.

Recursos úteis

For conjugation tables and verified examples, the Dicionário Infopedia and the Academia das Ciências de Lisboa maintain authoritative conjugation databases. The Ciberdúvidas da Língua Portuguesa is also useful for resolving ambiguities, particularly around pronoun placement and regional variation. I reference all three when working on documents that will be read by a multinational Portuguese-speaking audience. Their coverage is not exhaustive, but they catch the edge cases that automated tools consistently miss. If you need a quick downloadable reference, the Portuguese Language Academy publishes a free conjugation guide in PDF format that includes both European and Brazilian variants side by side. It is not the most visually polished resource, but the data is accurate and it covers the irregular imperatives that cause the most problems. I keep a copy saved locally and pull it whenever I encounter a verb I am unsure about.

Conclusão

Imperative sentences in Portuguese are straightforward once you accept that the affirmative and negative forms follow different conjugation patterns. The main difficulty is not the grammar itself but the regional variation and the irregular verbs that do not follow either pattern cleanly. If you are writing for a specific audience, identify whether that audience expects European or Brazilian Portuguese before you begin, and stick to one convention throughout the document. Mixing them creates confusion that no amount of grammatical correctness can fix.