Introduction
Assim que is a common connector in Brazilian Portuguese that expresses the idea of as soon as or immediately after. It helps link two events where one happens right after the other. This article explains how to use assim que in different tenses, sentence types, and everyday contexts, with clear examples and usage notes for English-speaking learners.
- What does assim que mean?
- Tenses and sequence: which verb forms to use
- Word order and comma use
- Common verbs and modal verbs with assim que
- Examples in different contexts
- Contrast with other temporal connectors
- Practical usage tips for learners
- Common mistakes and how to avoid them
- Quick reference: formulas
- Conclusion
What does assim que mean?
Assim que functions as a conjunction meaning as soon as, once, or immediately after. It introduces a time clause that shows when the action in the main clause will happen relative to another action. In English, you can often translate it as as soon as or once.
Basic idea and structure
The typical sentence structure is: time clause with assim que + main clause. The time clause contains the event that happens first; the main clause contains the event that follows. For example:
Assim que eu chegar, eu te ligo.
This means as soon as I arrive, I will call you.
Tenses and sequence: which verb forms to use
Understanding which verb tense to use after assim que depends on the time relationship between the two actions. The verb in the assim que clause describes the earlier action; the verb in the main clause describes the following action.
Future actions: present indicative + future
For events that will happen in the future, Brazilian Portuguese commonly uses the present indicative in the time clause and the future tense in the main clause. This is similar to English where we often use present simple in time clauses about the future.
Example:
Assim que eu terminar o trabalho, eu vou para casa.
As soon as I finish work, I will go home.
Note that the main clause can also use the future indicative (vou, ficará) or the simple future (irei). Both are natural in Brazilian Portuguese.
Past actions: past perfect/imperfect
When both actions are in the past, use the appropriate past tense forms. If one event happened immediately after another in the past, you often use the preterite (pretérito perfeito) for the earlier event and the preterite or pluperfect for the result.
Examples:
Assim que ela chegou, nós começamos a reunião.
As soon as she arrived, we started the meeting.
Assim que eu terminei o curso, me mudei para outra cidade.
Once I finished the course, I moved to another city.
Habitual actions: present indicative
For recurring or habitual situations, use the present indicative in both clauses. This expresses that one event habitually follows the other.
Examples:
Assim que ele chega do trabalho, ele toma banho.
As soon as he gets home from work, he takes a shower.
Assim que chove, o trânsito piora.
As soon as it rains, traffic worsens.
Subjunctive uses: when to use the subjunctive
The subjunctive appears less often with assim que than with some other conjunctions, but it can appear when the action in the time clause is uncertain or anticipated and the speaker emphasizes doubt, desire, or subjective attitude. In Brazilian Portuguese, however, speakers more commonly use the indicative for real future events.
Example with subjunctive (formal or cautious tone):
Assim que ele venha, vamos conversar.
As soon as he comes (if/when he comes), we will talk.
In everyday speech Brazilians are more likely to say: Assim que ele vier, vamos conversar.
Word order and comma use
If the sentence starts with the assim que clause, place a comma after that clause before the main clause. When the main clause comes first, a comma is usually not needed.
Examples:
Assim que terminar, me avise.
Me avise assim que terminar.
Negative forms
To express that something will happen only after something else does not happen, use assim que with the negative verb. The logic is the same: the time clause uses the negative form.
Examples:
Assim que ele não estiver disponível, ligue para outra pessoa.
As soon as he is not available, call someone else.
Note: This structure is less common; Brazilians often prefer alternatives like quando não estiver or se ele não puder.
Common verbs and modal verbs with assim que
Common verbs with assim que include chegar, terminar, sair, voltar, receber, ligar, começar, and prestar. Modal verbs and periphrastic futures like ir + infinitive appear frequently in the main clause.
Examples:
Assim que eu receber a mensagem, eu respondo.
Assim que você sair, eu paro o carro.
Assim que ele voltar, vamos marcar outra reunião.
Using ir + infinitive vs. future indicative
In spoken Brazilian Portuguese, the periphrasis ir + infinitive (vou fazer) is more common than the synthetic future (farei). After assim que, either is acceptable for the main clause, but ir + infinitive sounds more natural in informal speech.
Examples:
Assim que eu terminar, eu vou para casa. (very natural)
Assim que eu terminar, eu irei para casa. (more formal)
Examples in different contexts
Below are practical examples grouped by situation to help you recognize and use assim que naturally.
Phone and messaging
Assim que eu chegar em casa, eu te ligo.
As soon as I get home, I’ll call you.
Assim que receber o e-mail, eu confirmo o horário.
As soon as I receive the email, I’ll confirm the time.
Work and appointments
Assim que terminar o relatório, eu envio para o chefe.
As soon as I finish the report, I’ll send it to the boss.
Assim que o cliente pagar, começamos o serviço.
As soon as the client pays, we start the work.
Travel and arrivals
Assim que você chegar ao aeroporto, me avise.
As soon as you arrive at the airport, let me know.
Assim que o voo pousar, pegamos as malas.
As soon as the flight lands, we pick up the bags.
Everyday life and routines
Assim que termina o horário de almoço, a loja reabre.
As soon as lunch break ends, the store reopens.
Assim que escurece, as luzes da rua acendem.
As soon as it gets dark, the street lights turn on.
Contrast with other temporal connectors
Portuguese has several temporal connectors that can be confusing. Here are simple contrasts to help you choose assim que correctly.
Assim que vs quando
Quando means when and is more neutral; assim que emphasizes immediacy or immediateness. Use assim que when you want to stress that one action follows right after another.
Examples:
Quando eu chegar, eu vou descansar. (When I arrive, I will rest.)
Assim que eu chegar, eu vou descansar. (As soon as I arrive, I will rest — stresses immediacy.)
Assim que vs logo que
Logo que is very similar to assim que and can often be used interchangeably. Small differences are stylistic or regional; both mean as soon as.
Examples:
Logo que eu soube, liguei para ela.
Assim que eu soube, liguei para ela.
Assim que vs depois que
Depois que means after and does not necessarily imply immediacy. Use depois que when the follow-up action may occur later, not right away.
Examples:
Depois que ele saiu, senti falta da conversa. (After he left, I missed the conversation — may be some time.)
Assim que ele saiu, senti falta da conversa. (As soon as he left, I missed the conversation — immediate reaction.)
Practical usage tips for learners
1) Start sentences with the assim que clause to emphasize the sequence. This makes the timing clear.
2) Use the present indicative in the assim que clause for future events. It sounds natural and is grammatically correct.
3) Prefer ir + infinitive in casual speech for the main clause when talking about the future.
4) Pay attention to punctuation: place a comma after the assim que clause when it opens the sentence.
5) Practice with common verbs like chegar, terminar, receber, and sair to build familiarity.
Cultural and usage notes
In Brazilian Portuguese, speakers often prefer concise, conversational forms. That means using the present indicative for future time clauses and ir + infinitive for future results. Formal written Portuguese might use more varied tenses, but in daily speech you will hear phrases like Assim que eu chegar and Assim que eu souber a resposta.
Common mistakes and how to avoid them
Mistake 1: Using the infinitive in the time clause without a clear subject. The time clause needs a finite verb to show who performs the action.
Incorrect: Assim que chegar, eu ligo. (ambiguous subject)
Better: Assim que eu chegar, eu ligo.
Mistake 2: Forgetting the comma when the sentence starts with the assim que clause. Adding the comma improves clarity.
Incorrect: Assim que eu chegar eu aviso.
Better: Assim que eu chegar, eu aviso.
Mistake 3: Overusing the subjunctive. Most future real events use the indicative. Reserve the subjunctive for doubt, hypothetical situations, or formal styles.
Quick reference: formulas
Future real events: Assim que + present indicative, main clause with future (ir + infinitive or futuro).
Past sequence: Assim que + preterite/imperfect, main clause with preterite/pluperfect.
Habitual events: Assim que + present indicative, main clause present indicative.
Conclusion
Assim que is a versatile and frequently used connective in Brazilian Portuguese to express immediacy between two events. Use the present indicative in the time clause for future actions, match past tenses for past sequences, and prefer natural spoken forms like ir + infinitive in the main clause. With a few examples and attention to word order and punctuation, you can start using assim que confidently in everyday conversation.
