Breakdown of Quando o astronauta tiver vestido o fato espacial, sairá da base.
de
of / from / by (means of transport) / wearing (attire)
ter
to have
quando
when
sair
to go out
vestir
to put on, to wear
o fato
the suit
o astronauta
the astronaut
a base
the base
espacial
spatial
Questions & Answers about Quando o astronauta tiver vestido o fato espacial, sairá da base.
Why do we use tiver vestido (Future Perfect Subjunctive) here instead of just vestir (Future Subjunctive)?
Using the compound tense tiver vestido emphasizes that the action must be completely finished before the next action happens. It translates nicely to "when he has put on" rather than just "when he puts on". It highlights that leaving the base won't happen until the suit is fully on.
How is the Future Perfect Subjunctive formed in this sentence?
It is built using the auxiliary verb ter in the Future Subjunctive, which is tiver for the ele (the astronaut) form, followed by the past participle of the main verb, vestido.
Could I use the verb usar instead of vestir in this context?
Not without changing the meaning. Vestir refers to the active process of getting dressed or putting clothes on. Usar means to wear, referring to the continuous state of having clothes on. Because this sentence is about completing the action of getting suited up before leaving, vestir is the exact verb needed.
Why is the second verb, sairá, in the future indicative tense rather than the subjunctive?
The word Quando triggers the subjunctive only in its own clause, because it introduces a future condition that hasn't happened yet. The main clause, sairá da base, is a firm statement about what will happen once that condition is met, so it requires the indicative mood.
Learn Quando o astronauta tiver vestido o fato espacial, sairá da base and more in Portuguese
All course content and exercises are completely free — no paywalls, no trial periods, no signup needed.
- ✓ Practice with interactive exercises
- ✓ Track your progress with spaced repetition
- ✓Learn at your own pace — completely free