Fiquei a pensar nisso a noite toda. Ficou a ver televisão até as pálpebras lhe caírem. Fica a ver a loja, eu já venho. In each of these, the speaker is doing more than simply describing an action in progress — they are marking that the subject remained in that activity, or was left in it, for a stretch of time. This is the job of ficar a + infinitive: a periphrasis that layers "staying in a state" onto an ongoing action. It is one of the most characteristic EP constructions, and English has no single equivalent — sometimes "stayed doing," sometimes "was left doing," sometimes "kept on doing," always with the flavour of remaining. This page walks through the paradigm, distinguishes it from estar a + inf and continuar a + inf, and separates it cleanly from the resultative ficar + past participle.
The core idea: remaining in an activity
The verb ficar has a spread of meanings around "stay, remain, end up, become." When it feeds a periphrasis with a + infinitive, it pulls the "stay, remain" part of its meaning into the ongoing action. The sentence ends up saying two things at once: the subject is doing X, and the subject is staying / remaining in that doing.
Where estar a + inf gives you a pure snapshot of action in progress, ficar a + inf adds a layer of duration and of remaining-in-place. Where continuar a + inf says "the action did not stop," ficar a + inf says "the subject stayed in the activity," often with the nuance of being left there while events moved on around them.
Fiquei a pensar no que me disseste durante a noite toda.
I stayed / was left thinking about what you said to me all night long.
Ele ficou a trabalhar até às dez, os outros saíram mais cedo.
He stayed on working until ten; the others left earlier.
Fica a ver a loja, eu já venho.
Stay and watch the shop, I'll be right back.
The three slots
| Slot | What fills it | What changes |
|---|---|---|
| auxiliary | ficar, in some tense | conjugates for person, number, tense |
| linker | a (plain preposition) | never changes |
| main verb | bare infinitive | never changes form |
The preposition is the plain a — never à. Clitic pronouns follow the usual EP periphrastic rules.
Ficar a + inf vs ficar + past participle
Before the paradigm, a critical separation. Ficar can also combine with a past participle to express a resultative state — "ending up" in a finished condition. That is a different construction with a different meaning.
- Ficar a + infinitive — remain in an activity (ongoing, verbal).
- Ficar + past participle — end up in a finished state (resultative, adjectival).
Fiquei a ler o livro até à meia-noite.
I stayed up reading the book until midnight. (activity)
Fiquei a trabalhar no escritório até tarde.
I stayed working at the office until late. (activity)
Fiquei cansado depois do treino.
I ended up tired after training. (state)
The participle version is covered on its own page; here we stay with the a + infinitive pattern.
Paradigm across the key tenses
Ficar is regular in most tenses, with the usual -car → -qu- spelling adjustment in the eu preterite (fiquei, not ficei). The a + infinitive block never changes.
Present — "stays doing / keeps on doing (in place)"
| Subject | ficar (present) | Example with ver |
|---|---|---|
| eu | fico | fico a ver |
| tu | ficas | ficas a ver |
| ele / ela / você | fica | fica a ver |
| nós | ficamos | ficamos a ver |
| eles / elas / vocês | ficam | ficam a ver |
The present is less common than the preterite here — "remaining in an activity" is usually described after the fact — but it does appear in instructions, habitual descriptions, and stage directions.
Sempre que ele vem cá, fica a ver fotografias antigas durante horas.
Whenever he comes over, he ends up looking at old photos for hours.
Fica a esperar por mim na entrada, eu vou buscar o carro.
Wait for me at the entrance, I'll go get the car.
Preterite — "stayed / was left doing"
This is the workhorse form. Most ficar a + inf sentences describe what somebody was left doing while time moved on, which is naturally preterite.
| Subject | ficar (preterite) | Example with pensar |
|---|---|---|
| eu | fiquei | fiquei a pensar |
| tu | ficaste | ficaste a pensar |
| ele / ela / você | ficou | ficou a pensar |
| nós | ficámos | ficámos a pensar |
| eles / elas / vocês | ficaram | ficaram a pensar |
Fiquei a pensar no que me disseste o dia inteiro.
I was left thinking about what you said all day long.
Depois da festa, ficámos a conversar até de madrugada.
After the party, we stayed up talking until dawn.
Ela ficou a olhar para a janela durante um bom bocado.
She stood there looking out of the window for a good while.
Imperfect — "was staying / kept remaining"
| Subject | ficar (imperfect) | Example with ler |
|---|---|---|
| eu | ficava | ficava a ler |
| tu | ficavas | ficavas a ler |
| ele / ela / você | ficava | ficava a ler |
| nós | ficávamos | ficávamos a ler |
| eles / elas / vocês | ficavam | ficavam a ler |
Em criança, ficava a ler na cama até os meus pais me chamarem para jantar.
As a child, I'd stay up reading in bed until my parents called me for dinner.
Nos domingos à tarde, ficávamos a ouvir o avô contar histórias.
On Sunday afternoons we'd sit listening to grandfather telling stories.
Future, conditional, imperative, subjunctive
Amanhã vou ficar a trabalhar em casa.
Tomorrow I'll stay home working.
Se pudesse, ficaria a dormir até ao meio-dia.
If I could, I'd stay sleeping till noon.
Fica a ouvir o bebé, se chorar chama-me.
Stay here listening for the baby — if he cries, call me.
Não quero que fiques a trabalhar até tão tarde outra vez.
I don't want you staying at work until so late again.
The three nuances of ficar a + inf
The construction wears three related hats, and native speakers slip between them effortlessly. Noticing the three helps you pick the right English translation.
1. "Was left doing" — passive stranding
The subject is left behind in an activity while something else moves on. Very common with verbs of reflection, emotion, or wondering.
Ela saiu e eu fiquei a pensar se teria dito alguma coisa errada.
She left, and I was left wondering whether I'd said something wrong.
Os convidados foram-se embora e ficámos a arrumar a cozinha sozinhos.
The guests left and we were left cleaning up the kitchen by ourselves.
2. "Stayed doing" — active remaining
The subject chooses to stay in the activity instead of moving on.
Os outros saíram para o café, mas eu fiquei a trabalhar no projeto.
The others went out for coffee, but I stayed on working on the project.
Ficou a jantar connosco e só foi para casa depois da meia-noite.
He stayed for dinner with us and didn't go home until after midnight.
3. "Kept doing" — extended continuation
Closer to continuar a, but with an extra flavour of duration — the subject remained in the activity for a noticeably long time.
O telefone tocou e tocou, e eu fiquei a ouvi-lo sem atender.
The phone rang and rang, and I sat there listening without answering.
Depois da má notícia, ficámos a olhar uns para os outros sem saber o que dizer.
After the bad news, we stood there looking at each other without knowing what to say.
All three are the same construction. The shade of meaning comes from context, not from different grammar.
Ficar a + inf vs estar a + inf — remaining vs in-progress
The difference is the "staying" layer. Estar a + inf describes an action in progress; ficar a + inf describes the subject remaining in that action, often across some threshold.
Estava a trabalhar no escritório.
I was working at the office. (snapshot)
Fiquei a trabalhar no escritório depois de os outros saírem.
I stayed working at the office after the others left. (remained)
A good diagnostic: can you insert "on" (as in "stayed on doing") or "there" (as in "was left there doing") into the English? If yes, ficar a + inf is the right verb. If the sentence is pure progressive with no remaining flavour, use estar a + inf.
Estou a ler um livro.
I'm reading a book. (right now)
Fiquei a ler o livro até à meia-noite.
I stayed up reading the book until midnight. (remained)
Ficar a + inf vs continuar a + inf — remaining vs not stopping
Continuar a + inf asserts that the action has not stopped. It says nothing about remaining in place or being stranded. Ficar a + inf frames the activity as a staying-behavior, often across a transition.
Continuo a pensar naquilo.
I'm still thinking about that. (action ongoing from earlier)
Fiquei a pensar naquilo a noite toda.
I was left thinking about that all night. (remained in the activity)
Continuou a chover durante a tarde toda.
It kept on raining all afternoon. (non-stop continuation)
Ficou a chover toda a tarde.
It stayed raining all afternoon. (remained in that weather state)
Both are possible with the rain; native speakers use both, but the shade is different. Continuar a chover emphasises that the rain did not stop; ficar a chover emphasises that the weather stayed set in that mode.
Ficar a ver vs ficar por ver — a near-homophone trap
Ficar por + infinitive is a completely different construction meaning "remain undone, still to be done." Do not confuse it with ficar a + inf.
Fiquei a ver o filme até ao fim.
I stayed watching the film to the end.
Ficou por ver o fim do filme.
We never got around to seeing the end of the film. (it's still to be seen)
One letter changes, and the meaning flips from "stayed doing" to "is yet to be done." Worth a moment of care.
Negation
Não precedes the auxiliary.
Não fiques a trabalhar até tarde outra vez.
Don't stay working late again.
Não ficámos a ver o fim do concerto, tivemos de sair mais cedo.
We didn't stay to watch the end of the concert; we had to leave early.
Object pronouns
Clitics attach to the infinitive by default.
Fiquei a ouvi-lo durante uma hora.
I sat there listening to him for an hour.
A criança ficou a olhar-me sem piscar os olhos.
The child stood staring at me without blinking.
With a proclisis trigger, the pronoun jumps in front of ficar.
Não o fiques a olhar assim, é indelicado.
Don't stand there staring at him like that, it's rude.
Common mistakes
❌ Fiquei pensando nisso a noite toda.
Brazilian pattern — EP uses ficar a + infinitive, not ficar + gerund.
✅ Fiquei a pensar nisso a noite toda.
I was left thinking about it all night.
This is the same gerund-vs-infinitive split that runs through the entire EP periphrastic system. In Portugal, no progressive auxiliary takes a gerund.
❌ Ficei a trabalhar até tarde.
Spelling error — before -ei the c must become qu: fiquei.
✅ Fiquei a trabalhar até tarde.
I stayed working until late.
❌ Ficamos a conversar até de madrugada.
Ambiguous — without the accent this reads as present ('we stay talking'). For the past use ficámos.
✅ Ficámos a conversar até de madrugada.
We stayed up talking until dawn.
❌ Fiquei triste a pensar nisso.
Mixes two constructions — 'fiquei triste' is ficar + adjective (became sad); adding 'a pensar' is clunky. Either split them or rebuild.
✅ Fiquei a pensar nisso e fiquei triste.
I was left thinking about it and it made me sad.
✅ Fiquei triste quando pensei nisso.
I felt sad when I thought about it.
❌ Continuo a trabalhar até às dez, os outros saíram mais cedo.
Mismatched — the sentence is about staying behind while others left, which is the ficar a flavour.
✅ Fiquei a trabalhar até às dez, os outros saíram mais cedo.
I stayed on working until ten; the others left earlier.
Key takeaways
- Form: conjugated ficar
- a (plain preposition) + bare infinitive.
- Meaning: the subject remained in an activity — either actively (stayed doing) or passively (was left doing). Always carries a flavour of staying that bare estar a lacks.
- Separate from ficar + past participle, which is resultative (end up in a finished state), not ongoing.
- Separate from ficar por + inf, which means "remain to be done" — a very different meaning.
- Spelling: fiquei (preterite eu, with qu before e), ficámos (preterite nós, with acute accent to distinguish from present ficamos).
- Relatives: estar a + inf (in progress now); continuar a + inf (still doing, no break); andar a + inf (has been doing, iteratively, over recent time). See the respective pages for the full family.
- Brazilian Portuguese uses ficar + gerund (ficou pensando); EP does not. Use ficar a + inf in Portugal.
- Clitics: enclitic to the infinitive by default; proclitic to ficar under a trigger.
Related Topics
- Periphrastic Verb Constructions: OverviewA2 — A map of the productive verb + preposition + infinitive (and verb + gerund) constructions of European Portuguese — the compact machinery that adds aspect, phase, and modality to any verb.
- Continuar a + Infinitive (Still Doing)A2 — The continuative periphrasis continuar a + infinitive: how European Portuguese says 'still doing' or 'keep on doing', across tenses, with contrasts against voltar a and passar a.
- Andar a + Infinitive (Extended Progressive)B1 — The habitual / extended progressive andar a + infinitive: how European Portuguese says 'have been doing lately' with iteration across recent time, and how it differs from estar a.
- Começar a + Infinitive (Start Doing)A2 — The inchoative periphrasis começar a + infinitive: marking the beginning of an action in European Portuguese, with spelling notes on the ç/c switch and contrasts with pôr-se a and passar a.
- Deixar de + Infinitive (Stop Doing)A2 — The cessative periphrasis deixar de + infinitive: how European Portuguese says 'stop doing' or 'cease doing', plus the double-negative idiom não deixar de ('don't fail to, be sure to').