Introduction
Deixar de is a very useful phrasal verb in Brazilian Portuguese that means to stop doing something, to fail to do something, or to give up a habit. For English-speaking learners, understanding how deixar de works—its conjugation patterns, word order, and nuance—helps you speak naturally about quitting habits, breaking routines, or expressing omission. This article explains rules, examples, and common uses step by step.
- What does deixar de mean?
- Structure and basic grammar
- When to use deixar de vs. parar de
- Negative and affirmative uses
- Pronouns, object placement, and reflexive forms
- Common verbs and expressions used with deixar de
- Tense and aspect: expressing when the stopping happened
- Nuance: permanent vs temporary stopping
- Common mistakes and how to avoid them
- Examples in real Brazilian Portuguese sentences
- Putting it all together: model sentences and short dialogues
- Conclusion
What does deixar de mean?
Deixar de combines the verb deixar (to leave, let, allow) with the preposition de. In many situations it translates as to stop doing or to give up. It can also mean to fail to do something when used in a negative or neutral context. The general idea is interrupting an action or not performing it anymore.
Key senses:
– Stop a habit or action: parar de fumar → deixar de fumar.
– Omit or not perform an expected action: deixar de responder um e-mail.
– Neglect or fail to do something: deixar de cumprir uma tarefa.
Structure and basic grammar
The structure is simple: deixar de + infinitive. The verb deixar is conjugated to match the subject, while the verb after de stays in the infinitive. This mirrors English patterns like to stop doing something or to quit doing something.
Format: subject + conjugated deixar + de + infinitive
Examples:
Eu deixei de fumar.
Ela vai deixar de beber refrigerante.
Conjugation examples
Because deixar is the only verb that needs to be conjugated, you must know basic present, past, and future forms. Below are common forms used with deixar de.
Present: eu deixo de, você/ele/ela deixa de, nós deixamos de, eles deixam de.
Preterite (simple past): eu deixei de, você/ele/ela deixou de, nós deixamos de, eles deixaram de.
Imperfect: eu deixava de, você deixava de, nós deixávamos de.
Future: eu deixarei de, você deixará de, nós deixaremos de, eles deixarão de.
When to use deixar de vs. parar de
Two verbs are commonly used to express stopping: deixar de and parar de. They overlap but have subtle differences.
– Deixar de often implies stopping a habit or giving up something permanently or for a significant time. It can suggest intention or decision.
– Parar de also means to stop, but it can be more immediate and temporary, focusing on the action in progress.
Examples that show nuance:
Eu deixei de fumar no ano passado.
Implies a decision to quit smoking, likely long-term.
Eu parei de fumar agora.
Implies stopping in that moment or recently; could be temporary.
Negative and affirmative uses
Deixar de can be used in affirmative sentences to mean stop/give up, or in negative sentences to mean fail to do. Word order and context determine meaning.
Affirmative: stopping a habit
Eu deixei de beber café à tarde.
Nós deixamos de falar tanto sobre trabalho em casa.
Negative: failing to do something
Ele não deixou de visitar a avó.
This means he did not fail to visit his grandmother—he did visit her. Note how the negative scope affects the meaning.
Não deixe de me avisar amanhã.
This is a common expression meaning do not forget or do not fail to tell me.
Pronouns, object placement, and reflexive forms
With deixar de, personal pronouns follow normal Portuguese placement rules. When using direct object pronouns that attach to infinitives or participles, placement varies.
Examples:
Eu quero deixar de fumar.
Here the infinitive fumar takes no pronoun.
Ele deixou de me chamar.
Me is placed before the main verb deixou because Portuguese allows proclisis in this context.
Reflexive verbs after deixar de keep the reflexive pronoun with the infinitive:
Ela deixou de se preocupar tanto.
Se stays with preocupar in the infinitive form.
Common verbs and expressions used with deixar de
Many verbs describing habits or routines naturally follow deixar de. Here are frequent collocations and short notes on each.
Deixar de fumar — to quit smoking.
Deixar de beber — to stop drinking alcohol or other drinks.
Deixar de comer açúcar — to give up sugar.
Deixar de usar plástico — to stop using plastic (environmental action).
Deixar de trabalhar — to stop working (resign or retire, or temporarily stop).
Deixar de visitar — to stop visiting someone or a place.
Useful idiomatic phrases
Não deixe de… — a polite or firm reminder meaning do not forget or be sure to.
Deixei de + infinitive + há + time — to express how long ago you stopped a habit: Deixei de fumar há dois anos.
Tense and aspect: expressing when the stopping happened
Context determines whether you express a completed stop or an ongoing decision. Use the preterite (pretérito perfeito) to express an action completed in the past, and the present or future for ongoing or planned changes.
Completed stop (preference for preterite):
Eu deixei de comprar doces depois do Natal.
Ongoing or current choice (present):
Eu deixo de beber refrigerante durante a semana.
Planned or expected stop (future):
Vou deixar de usar o carro no próximo mês.
Nuance: permanent vs temporary stopping
To emphasize permanence, speakers often add adverbs or time markers like para sempre, definitivamente, ou há dois anos. To indicate a temporary pause, use por enquanto, por um tempo, or apenas agora.
Examples:
Deixei de fumar definitivamente.
Implies a permanent decision.
Deixei de fumar por um tempo.
Indicates a temporary break.
Common mistakes and how to avoid them
1) Forgetting the preposition de
Incorrect: Eu deixei fumar.
Correct: Eu deixei de fumar.
2) Wrong verb form after de
The verb after de must be an infinitive. Incorrect: Eu deixei de fumando.
Correct: Eu deixei de fumar.
3) Misplacing negatives
Sentence meaning can change depending on where não is placed. Compare: Ele não deixou de ajudar. (He did not stop helping / he continued helping.) vs. Ele deixou de ajudar. (He stopped helping.)
4) Confusing with parar de
Use context to choose between deixar de and parar de when deciding how permanent or immediate the stop is.
Examples in real Brazilian Portuguese sentences
Eu deixei de comer carne recentemente porque quero tentar uma dieta vegetariana.
Ela deixou de trabalhar na empresa depois que teve o bebê.
Não deixe de conferir o horário antes de sair de casa.
Vocês vão deixar de usar plástico descartável nas festas?
Deixei de usar redes sociais por um mês para focar nos estudos.
Cultural and usage notes
In Brazil, people commonly discuss lifestyle changes, health decisions, and environmental choices using deixar de. Public health campaigns and everyday conversation often feature phrases like deixar de fumar or deixar de usar plástico. Using deixar de accurately will help you sound natural when talking about personal decisions, social norms, and polite reminders.
Note that in polite requests or suggestions you might hear Não deixe de… as a friendly nudge: Não deixe de visitar o museu se vier à cidade. This is softer and more encouraging than a command.
Putting it all together: model sentences and short dialogues
Short dialogue showing different uses:
– Maria: Eu deixei de tomar refrigerante.
– João: Sério? Há quanto tempo?
– Maria: Tem três meses. Estou me sentindo melhor.
Formal reminder example:
– Chefe: Não deixe de entregar o relatório até sexta.
– Funcionário: Pode deixar, vou deixar de revisar hoje para finalizar amanhã.
Conclusion
Deixar de is a versatile and essential construction for talking about stopping habits, failing to do something, or reminding someone not to forget. Remember the pattern: conjugate deixar, add de, and keep the following verb in the infinitive. Pay attention to negative placement, nuance between permanent and temporary stops, and the difference from parar de. With these points in mind, you will be able to use deixar de naturally in everyday Brazilian Portuguese conversations.
