B2Lesson 1: Advanced Subjunctive Forms
The future subjunctive expresses likely future events after temporal conjunctions like quando, using forms derived from the third-person plural preterite with endings -r, -res, -r, -rmos, -rem, making it Portuguese's unique verbal mood that Spanish speakers can only dream about.
Formation: Take 3rd plural preterite (falaram), drop -ram, add -r endings
Main trigger words: quando (when), se (if), assim que (as soon as), depois que (after)
Expresses: Future events that are probable or expected (not hypothetical)
Key pattern: Quando eu chegar, te ligo (When I arrive, I'll call you)
Looks like personal infinitive but isn't (different 'nós' form)
Super common in everyday Brazilian Portuguese
Often replaced by present/infinitive in casual speech
Unique to Portuguese – Spanish lost it 400 years ago!
The future subjunctive is everywhere in Brazilian daily life – you literally can't make plans without it! From casual promises ("Quando eu chegar, te aviso") to work emails ("Assim que recebermos o pagamento, enviaremos o produto") to dating ("Se você quiser, podemos sair"), this structure appears hundreds of times daily. Unlike the dramatic imperfect subjunctive of telenovelas, the future subjunctive is the practical grammar of real life: WhatsApp messages, work meetings, and family planning all depend on mastering this uniquely Portuguese form!
3rd person plural preterite stem (remove -ram) + -r, -res, -r, -rmos, -rem
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The future subjunctive uses the EXACT same stem as the imperfect subjunctive, but with different endings:
Find 3rd plural preterite: eles falaram
Remove -ram: fala-
Add future subjunctive endings:
| Person | Ending | Result | Compare to Imperfect |
|---|---|---|---|
| eu | -r | falar | falasse |
| tu | -res | falares | falasses |
"Quando eu chegar em casa, te mando mensagem"
"Assim que terminar o trabalho, vou ao supermercado"
"Se der tempo, passo na padaria"
"Quando você acordar, me liga"
"Depois que almoçarmos, podemos conversar"
"Quando recebermos o pagamento, liberamos o pedido"
"Se houver problemas, entre em contato"
"Assim que o chefe aprovar, começamos o projeto"
"Caso precisarem de ajuda, estou disponível"
With verb "ir", Brazilians often drop the future subjunctive:
Formal: "Quando você for" (When you go)
Common: "Quando você vai" (uses present/future)
Also common: "Quando for" (drops pronoun)
This ONLY happens with "ir" - other verbs maintain future subjunctive.
"Antes que" (before) is the rebel - it takes PRESENT subjunctive, not future:
✅ "Antes que ele chegue" (present subjunctive)
❌ "Antes que ele chegar" (future subjunctive)
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