Romanian does not have a future tense — it has several, and the single most important thing to understand is that they are not free variants you can swap at will. Each one belongs to a register. Pick the wrong one and you will be understood perfectly, but you will sound off: bookish in a café, or sloppy in a formal letter. This page maps the four main ways to express the future and tells you, bluntly, which to reach for in speech and which to save for writing. The headline: in everyday conversation, o să merg is by far the most common, with am să merg close behind, while the textbook-favourite voi merge is formal and written.
The four constructions at a glance
| Construction | "I will go" | Register | How often in speech |
|---|---|---|---|
| viitor I (voi + infinitive) | voi merge | formal, written, literary | rare in casual speech |
| o să + conjunctiv | o să merg | neutral colloquial | the everyday default |
| am să + conjunctiv | am să merg | colloquial, a touch emphatic | very common |
| present + time adverb | Plec mâine. | neutral, near future | common for the near/scheduled future |
Watch the same sentence — "Tomorrow I'll go to the doctor" — shift register across all four:
Mâine voi merge la doctor.
Tomorrow I will go to the doctor. (formal / written)
Mâine o să merg la doctor.
Tomorrow I'll go to the doctor. (everyday default)
Mâine am să merg la doctor.
Tomorrow I'll go to the doctor. (colloquial, slightly more emphatic)
Mâine merg la doctor.
Tomorrow I'm going to the doctor. (present for a scheduled future)
1. Viitor I: voi + infinitive (formal/written)
The "classic" future joins a special auxiliary — voi, vei, va, vom, veți, vor — to the bare short infinitive (no a): voi merge, vei face, va veni. This is the form your textbook conjugation table shows, but in real life it lives in the written and formal register: news, literature, official speeches, contracts.
Guvernul va lua măsuri suplimentare în lunile următoare.
The government will take additional measures in the coming months. (news register)
Îți voi fi mereu alături.
I will always be by your side. (elevated, e.g. in a vow or a song lyric)
For the full conjugation and clitic placement, see the literary future page.
2. O să + conjunctiv (the everyday default)
This is the future you will use and hear most. It is built from an invariable o plus the conjunctiv (the să-form): o să merg, o să mergi, o să meargă, o să mergem, o să mergeți, o să meargă. The o never changes — same word for every person — which makes it wonderfully easy.
| Person | o să + conjunctiv (a merge) |
|---|---|
| eu | o să merg |
| tu | o să mergi |
| el / ea | o să meargă |
| noi | o să mergem |
| voi | o să mergeți |
| ei / ele | o să meargă |
O să te sun diseară, promit.
I'll call you tonight, I promise.
Cred că o să plouă, ia o umbrelă.
I think it's going to rain, take an umbrella.
3. Am să + conjunctiv (colloquial, emphatic)
Here the auxiliary does conjugate — am, ai, are/o, avem, aveți, au + conjunctiv — but in the future sense the common shapes are am să, ai să, o să, avem să.... In practice am să (1sg) and ai să (2sg) are the live forms; in the third person o să is so dominant that are să sounds stiff. Am să carries a slightly more emphatic, sometimes determined or threatening, flavour — "I'm going to," "I will (just you watch)."
Am să-ți explic tot când ne vedem.
I'll explain everything to you when we meet.
Ai să vezi că am avut dreptate.
You'll see that I was right.
For the contrast in feel, compare o să-ți explic (neutral) with am să-ți explic (a touch firmer).
4. The present + a time adverb (near/scheduled future)
For the near future, a fixed plan, or a timetable, Romanian — like English ("I'm going tomorrow") — often just uses the present tense with a future time word. It feels concrete and settled.
Plec mâine la prima oră.
I'm leaving tomorrow first thing.
Săptămâna viitoare începem cursul nou.
Next week we start the new course.
See the present for the future for when this is and isn't natural.
The big takeaway: register, not grammar
All four are grammatically correct. The error English speakers make is reaching for voi merge by default — partly because it is the form in the conjugation tables, partly because voi is the etymological cousin of English "will." But that instinct is exactly backwards: the voi-future is the least colloquial option. In a normal conversation, voi merge can sound like you are reading from a press release.
Common Mistakes
❌ (chatting with a friend) Voi veni la tine pe la șapte.
Not wrong grammatically, but too formal for casual chat — it sounds like written Romanian.
✅ O să vin la tine pe la șapte.
I'll come over around seven.
❌ O să merg, o să mergem — am merge la mare.
Incorrect — 'o să' stays fixed; you cannot drift into 'am' shapes mid-paradigm. Keep the invariable 'o'.
✅ O să merg, o să mergem — o să mergem la mare.
I'll go, we'll go — we'll go to the seaside.
❌ O să a merge mâine.
Incorrect — after 'o să' comes the conjunctiv (o să meargă), never the infinitive with 'a'.
✅ O să meargă mâine.
He'll go tomorrow.
❌ (formal report) O să luăm măsuri suplimentare.
Too colloquial for an official document — written/formal register wants the voi-future.
✅ Vom lua măsuri suplimentare.
We will take additional measures.
Key Takeaways
- Romanian has four main futures, and the difference between them is register, not meaning.
- o să + conjunctiv (with invariable o) is the everyday spoken default: o să merg.
- am să + conjunctiv is colloquial and a touch emphatic: am să merg.
- voi + infinitive is formal/written — news, literature, officialdom — not casual speech.
- The present + time adverb (Plec mâine) handles the near, scheduled future.
- English speakers over-reach for voi because it looks like "will"; in fact it is the least colloquial choice — default to o să.
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Start learning Romanian→Related Topics
- The Literary Future (voi + infinitive)B1 — How to form Romanian's formal future — the auxiliary voi/vei/va/vom/veți/vor plus the bare short infinitive — where it belongs (news, literature, officialdom), and how clitics attach to it.
- The Colloquial Future (o să + conjunctiv)A2 — How to form and use the everyday spoken future with invariable 'o' plus 'să' and the conjunctive — the default future of conversational Romanian.
- The Future with am să / ai săB1 — The personally-inflected colloquial future built from 'a avea' plus 'să' plus the conjunctive — am să plec, ai să vezi — and how it differs from the invariable o-să future.
- o să vs voi: Register and FrequencyB1 — Which future to actually produce and which to merely recognize — o să dominates speech, voi belongs to writing, am să is colloquial-emphatic, and the bare present handles the timetable.
- The Present for Scheduled FutureA2 — Why Romanian routinely uses the plain present for planned, scheduled, and imminent future events — and why, with a future time adverb, it sounds more certain than the o să future.