Portuguese Future Subjunctive

Dear friends, are you ready to learn Portuguese online? Today’s free Portuguese lesson is about the Portuguese Future Subjunctive! If you’re already confused only by reading the name, don’t worry, today you’ll understand everything!

What is the subjunctive?

Before we start talking about the Portuguese Future Subjunctive, we have to go back a little bit and remember what is the subjunctive. Subjunctive is a verb mode of Portuguese language that expresses doubts, desires, possibilities. This could be called a conditional in English as it is related to conditions or cause and effect.

Learning Portuguese Future Subjunctive

So, let’s think together. If we are talking about possibilities and future… This tense will talk about possibilities that could happen in the future? YES! What else? The Portuguese Future Subjunctive indicates something that will happen in the future, but we don’t know when. Or something that could happen, but we don’t know for sure that it will.

This tense is often used with the conjunctions quando (when) and se (if). You can learn more about conjunctions that are used with the subjunctive mode here. Let’s see some examples!

Quando eu juntar dinheiro, viajarei ao Rio!
When I save enough money, I’ll travel to Rio!

Quanto eu tiver tempo, vou ter aulas de Português online.
When I have time, I’ll have Portuguese classes online.

Se ele chegar a tempo, assistiremos ao filme.
If he arrives at time, we’ll watch the movie.


Ok, you understand what the Portuguese future subjunctive is, but how can we conjugate it? The subjunctive’s future is a tense derived from the perfect past tense of the indicative. So, if we go back to the perfect tense it will help us conjugate the future of the subjunctive. Take a look at this image:

Example of conjugation of Portuguese future subjunctive: falar - quando eu falar, quando você falar, quando ele/ela falar, quando nós falarmos, quando vocês falarem, quando eles/elas falarem.

Notice that if we go back to the third person (eles/elas) of the pretérito perfeito, we can use it as a base to transform and conjugate into the Portuguese future subjunctive. If you want to study about the Portuguese Past tense, click here.

In all the singular conjugations, we simply erase the termination  -am and to conjugate the plurals we have to add the terminations shown above. This tip will help us a lot because it works with every single verb, even the irregular ones. Just don’t forget to go back to the simple past in the 3rd person!

Let’s take a look at another example with the irregular verb ser/ir.

Example of conjugation of Portuguese subjunctive with the verb ser (to be) and ir (to go).

Exercise for the Portuguese Future Subjunctive

To see if you now master this tense, complete these sentences with the correct conjugations:

  1. Quando você virá ao Rio? Quando eu (ter) ________ tempo e dinheiro.
  2. Se ele não me (responder) ________ até amanhã, vou cancelar nossos planos.
  3. Quando eles (ter) ________ uma oportunidade, vão alugar um novo apartamento.
  4. Se nós (trazer) ________ comida italiana, todos vão querer comer.
  5. Ela só sairá, quando você (chegar) ________.
  6. Quando eu (ficar) ________  velha, espero que eles lembrem de mim.
  7. Se eles (comprar) ________ o que querem, não terão dinheiro.
  8. Se você (ver) ________ meu pai, diga que estou o procurando.
  9. Se vocês (ir) ________ à festa, me avisem.
  10. Quando vocês (chegar) ________, me liguem.

Want to know what you’ll do once you’re in Rio? Check out our Facebook and see the photos of our RioLIVE! Activities.


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Click on the links below to see more related Dicas
Compound Future Time Clause
Present Subjunctive in Portuguese
Conjunctions of Subjunctive
Imperfect Subjunctive in Portuguese


  1. Quando você virá ao Rio? Quando eu tiver tempo e dinheiro.
  2. Se ele não me responder até amanhã, vou cancelar nossos planos.
  3. Quando eles tiverem uma oportunidade, vão alugar um novo apartamento.
  4. Se nós trouxermos comida italiana, todos vão querer comer.
  5. Ela só sairá, quando você chegar.
  6. Quando eu ficar  velha, espero que eles lembrem de mim.
  7. Se eles comprarem o que querem, não terão dinheiro.
  8. Se você vir meu pai, diga que estou o procurando.
  9. Se vocês forem à festa, me avisem.
  10. Quando vocês chegarem, me liguem.

This post is also available in: English Português (Portuguese) Español (Spanish)

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