Romanian builds a remarkable amount of its noun stock out of verb forms, and it does so with almost no machinery: you take a non-finite form — a participle or a supine — and you put a determiner on it (an article, a demonstrative). That single move converts the verb form into a noun. Rănit (wounded) plus an article gives un rănit ("a wounded man"); căzut (fallen) plus a demonstrative gives cei căzuți ("the fallen"); the supine fumat plus the definite article gives fumatul ("smoking, the act of smoking"). This page is about that conversion — what each non-finite form contributes, why the determiner is the trigger, and how to keep the supine-noun (fumatul) from being confused with the long infinitive (fumare). This is the noun-making counterpart to the participle used as a pure adjective.
The participle as a noun: an article does the work
The past participle, on its own, can be an adjective ("a wounded soldier" — un soldat rănit). But put a determiner directly in front of it with no noun to lean on, and the participle becomes the noun — it now names a person or thing characterized by the action.
Un rănit a fost dus la spital.
A wounded man was taken to the hospital.
Cei căzuți în război sunt comemorați în fiecare an.
The fallen (those who fell) in the war are commemorated every year.
Este un cunoscut de-al meu, nu un prieten apropiat.
He's an acquaintance of mine, not a close friend.
In each case the participle agrees like an adjective (un rănit, o rănită, cei căzuți, cele căzute) — that part is inherited from its adjectival paradigm — but functionally it is now a full noun: it heads the phrase, it can be a subject (un rănit a fost dus), and it can be counted (doi răniți).
Au fost trei morți și mai mulți răniți în accident.
There were three dead and several wounded in the accident.
Acuzatul a refuzat să răspundă la întrebări.
The accused (man) refused to answer the questions. (acuzat 'accused' → un/the acuzat, a noun)
A particularly important sub-case: certain participles become abstract nouns with the definite article, naming a time-period or a stretch of action.
Trecutul nu se mai poate schimba.
The past cannot be changed anymore.
Mă uit cu încredere spre viitor.
I look toward the future with confidence.
Trecutul ("the past," from a trece "to pass") and viitorul ("the future," a verbal derivative of a veni "to come") are pure nouns now — they take plurals (trecuturile, viitorurile), genitives, the works. The participle has fully crossed over.
The supine as an activity noun
The supine is the form that looks like the participle (fumat, înotat, citit, cules) but lives in a different grammatical zone. When you give the supine the definite article, it becomes the standard Romanian noun for an activity: fumatul ("smoking"), înotul ("swimming"), cititul ("reading"). This is the natural Romanian equivalent of the English -ing gerund used as a noun.
Fumatul este interzis în restaurante.
Smoking is forbidden in restaurants.
Înotul este cel mai complet sport.
Swimming is the most complete sport.
Cititul de seară mă ajută să adorm.
Evening reading helps me fall asleep.
Why the supine and not the participle here? Because the activity noun names a process or practice as a whole, abstractly — "smoking" as a habit, "swimming" as a sport — which is precisely the supine's contribution. (Note the form: înot would be the bare noun; înotul with the article is the supine nominalization; usage overlaps, but the article-bearing supine is the productive activity-noun pattern.) The participle-noun, by contrast, names a person/thing affected by the action (un rănit = someone who was wounded). One names the deed; the other names the done-to.
The supine also appears in two fixed frames that you should recognize as supine-nouns:
Toamna mergem la cules de struguri.
In autumn we go to the grape harvest. (la cules = 'at/to the picking')
Ai cumpărat ceva de mâncare?
Did you buy anything to eat / any food? (de mâncare = supine in a partitive frame)
Avem multe de făcut astăzi.
We have a lot to do today. (de + supine)
The big trap: supine-noun vs long infinitive
This is the confusion to stamp out. Both the supine-noun (fumatul) and the long infinitive (fumare) can be glossed in English as "smoking," so learners mix them up. They are different words doing different jobs.
| Supine-noun | Long infinitive (-re noun) | |
|---|---|---|
| Form (from a fuma) | fumatul | fumare / fumat → rare |
| Form (from a citi) | cititul | citire |
| What it names | the activity, as a living practice | a frozen, lexicalized thing/result |
| Productive? | yes — build it from any verb | no — a closed set of vocabulary items |
| Everyday "I like X-ing" | ✅ Îmi place înotul | ❌ not used this way |
The practical rule: for the live, productive "the act/practice of X-ing," use the supine + article (înotul, cititul, fumatul). The -re form is a dictionary noun with its own often-drifted meaning (citire = "a reading lesson / a recital"; plăcere = "pleasure"; vedere = "view, postcard"), covered on The Long Infinitive as a Noun. When in doubt about which to coin for a generic activity, the answer is almost always the supine.
Înotul mă relaxează, dar citirea poeziilor în public mă emoționează.
Swimming relaxes me, but reciting (the reading of) poems in public moves me. (supine vs a fixed -re noun)
Why English speakers stumble here
English has one form for both jobs: the -ing gerund covers "smoking is bad" (activity) and the past participle covers "the wounded" (the affected). Romanian assigns them to two different non-finite forms, and on top of that adds an agreement layer on the participle-noun (un rănit / o rănită / răniții) that English never has. So the English speaker must learn two things at once: (1) pick the supine for activities and the participle for affected persons/things, and (2) make the participle-noun agree.
Răniții au fost transportați cu ambulanța.
The wounded were transported by ambulance. (participle-noun, masc. pl. definite — răniții)
Spălatul vaselor e treaba mea în seara asta.
Doing the dishes (the dish-washing) is my job tonight. (supine activity-noun + genitive object)
Notice in the last example that the supine-noun spălatul keeps a faint verbal flavor — it takes a genitive object (vaselor, "of the dishes"), much like the English gerund takes a direct object ("washing the dishes"). That residual verbal force is normal for the supine activity-noun and is one more reason it, not the frozen -re noun, is the right tool for generic activities.
Common Mistakes
❌ Fumare este interzisă.
Wrong — the activity noun is the supine 'fumatul', not the rare/odd '-re' form.
✅ Fumatul este interzis.
Smoking is forbidden.
❌ Îmi place citirea.
Wrong for 'I like reading' — 'citire' is a fixed noun (a recital/lesson). Use the supine.
✅ Îmi place cititul. / Îmi place să citesc.
I like reading.
❌ Un ranit a fost dus la spital.
Wrong spelling — the participle is 'rănit' with ă.
✅ Un rănit a fost dus la spital.
A wounded man was taken to the hospital.
❌ Cei căzut sunt comemorați.
Wrong agreement — a nominalized participle still agrees; masc. pl. is 'căzuți'.
✅ Cei căzuți sunt comemorați.
The fallen are commemorated.
❌ Spălatul vasele e treaba mea.
Wrong — the supine-noun takes a genitive object: 'vaselor', not the bare definite 'vasele'.
✅ Spălatul vaselor e treaba mea.
Doing the dishes is my job.
Key Takeaways
- A determiner (article or demonstrative) converts a non-finite verb form into a noun — no suffix needed (conversion / zero-derivation).
- The participle + article/demonstrative names a person or thing affected: un rănit, cei căzuți, un cunoscut; and abstract nouns like trecutul, viitorul. It still agrees.
- The supine + article names an activity: fumatul, înotul, cititul; plus fixed frames la cules, de mâncare, de făcut.
- Do not confuse the supine-noun (fumatul, productive, "the practice of") with the long infinitive (citire, plăcere, a frozen vocabulary set).
- For "I like X-ing / X-ing is good," the everyday Romanian noun is the supine (Cititul e relaxant), not the -re word.
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- The Past Participle as AdjectiveB1 — How the Romanian participle agrees in gender and number like any adjective — its four-way paradigm, its role in the a-fi passive, and the exact boundary where agreement switches on.
- The Supine as a Noun (la cules, mersul pe jos)B2 — The supine — the participle form used nominally — as the engine behind several uniquely-Romanian constructions: de + supine 'to be Xed' (ceva de mâncat, greu de crezut), the tool frame (mașină de spălat), la + supine for activities (la cules), the aspectual a termina/a avea de + supine (am terminat de mâncat), and the articulated activity noun (mersul pe jos, fumatul, cititul).
- Conversion: Adjectives and Participles as NounsB2 — Romanian turns adjectives, participles, and even verbs into nouns with NO suffix — the article alone marks the category switch. An adjective becomes a noun (bătrân 'old' → un bătrân 'an old man'), a past participle becomes a noun (rănit 'wounded' → un rănit 'a casualty') or an adjective (o ușă deschisă 'an open door'), and the infinitive or supine becomes an abstract noun (a citi → cititul 'the reading'). Because nothing is added, conversion is everywhere and easy to miss: the determiner — un, cel, the enclitic -ul — is the only signal that the word has changed its part of speech.
- The Past Participle as Verb FormB1 — How the Romanian participle builds the compound perfect, future perfect, past conditional, and perfect subjunctive — and the master rule that it stays invariable in every compound verb form.
- Non-Finite Forms: Reference TableB1 — A consolidated reference table of Romanian's four non-finite verb forms across the conjugation classes — the infinitive (a cânta), the gerund (cântând), the participle (cântat), and the supine (de cântat) — with formation, primary function, and a natural example for each, so the four stop blurring together.