Portuguese Future Subjunctive

Example with Portuguese future subjunctive: Quando vocês estiverem no Rio, poderão ir à praia.

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 be reading this 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 verbal mode of Portuguese language that expresses doubts, desires, possibilities. Often related to conditions and cause and effect relations.

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.

In the singular, we just have to erase the termination -am and to conjugate the plural persons we have to add the terminations above. This 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!


 width=   leer esta dica en español
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


This post is also available in: Português

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