The Auxiliary Verbs: a fi, a avea, a vrea | Romanian Grammar

Romanian builds most of its compound tenses not by inventing new verb endings but by recruiting three ordinary verbs as auxiliaries: a fi (to be), a avea (to have), and a vrea (to want). Each one specializes in a different corner of the grammar. The single most important thing to understand before you memorize any forms is this: when these verbs work as auxiliaries, they carry no meaning of their own. Am in am mâncat does not mean "I have" in the sense of possession — it is a grammatical signal, nothing more. Confusing the auxiliary with the full verb is the classic A2 stumbling block, and this page is built to prevent it.

The division of labour

Each auxiliary owns a distinct slice of the tense-and-mood system.

Auxiliary	Builds	Example
a avea	the perfect compus (everyday past)	am mâncat — I ate / I have eaten
a vrea (reduced forms)	the literary future	voi merge — I will go
a fi	the passive and the presumptive	este făcut — it is made; o fi mers — he has probably gone

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An auxiliary is a "helper" verb that adds tense or mood to a main verb without adding lexical meaning. English does the same thing: in "I have eaten," have is an auxiliary and does not mean possession. Romanian works identically — you already have the instinct.

A avea — the perfect compus

The everyday Romanian past, the perfect compus, is built from a short, reduced set of forms of a avea plus the participle (the -t form). These auxiliary forms are clipped — they are not the same as the full present-tense conjugation of a avea.

Person	Auxiliary	Full example with participle
eu	am	am mâncat
tu	ai	ai mâncat
el / ea	a	a mâncat
noi	am	am mâncat
voi	ați	ați mâncat
ei / ele	au	au mâncat

Am citit cartea de două ori.

I've read the book twice.

Ai văzut filmul ăla nou?

Have you seen that new film?

Au plecat deja la gară.

They've already left for the station.

Notice the third-person singular auxiliary is just a — a single vowel. This tiny word is the workhorse of the spoken past, and beginners constantly misread it. See the perfect compus with a avea for the full treatment.

A vrea — the literary future

The future tense most associated with writing and formal speech uses reduced forms of a vrea (to want) as an auxiliary, followed by the bare short infinitive (no particle a). Historically this is the Latin "I will [it] to happen" construction, and the auxiliary has eroded into short clitic-like forms.

Person	Auxiliary	Full example
eu	voi	voi merge
tu	vei	vei merge
el / ea	va	va merge
noi	vom	vom merge
voi	veți	veți merge
ei / ele	vor	vor merge

Vom discuta detaliile mâine-dimineață.

We'll discuss the details tomorrow morning.

Va veni și ea, dacă termină la timp.

She'll come too, if she finishes on time.

Îți voi trimite documentele până vineri.

I'll send you the documents by Friday.

This voi merge future is the one you meet in books, news, and careful prose (formal/literary). In everyday speech, Romanians overwhelmingly prefer the colloquial o să merg future instead. Compare them on the future overview and the voi future page.

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Do not confuse the future auxiliary voi / vei / va with the full verb a vrea "to want," whose present is vreau, vrei, vrea, vrem, vreți, vor. The future auxiliary is a worn-down relative, not the same word: voi merge = "I will go," but vreau să merg = "I want to go."

A fi — the passive and the presumptive

The verb a fi (to be) is the most versatile auxiliary. Its full present (sunt, ești, este/e, suntem, sunteți, sunt) and other tense forms combine with a participle to build the passive voice, where the participle agrees in gender and number like an adjective.

Casa este construită din lemn.

The house is built of wood.

Documentele au fost semnate de director.

The documents were signed by the director.

Cartea va fi tradusă în zece limbi.

The book will be translated into ten languages.

The same verb, in special invariable forms (oi, ăi/ei, o, om, ăți, or) plus a participle, builds the presumptive — the mood of inference and supposition, "must be / probably."

O fi plecat deja, că nu răspunde nimeni.

He's probably already left, since nobody's answering.

Or fi obosiți după drumul ăsta lung.

They must be tired after this long journey.

The presumptive lets Romanian say "they're probably tired" or "he must have left" in a single grammatical mood, where English needs adverbs like probably or modals like must. See the presumptive overview for the full paradigm.

The trap: am (auxiliary) vs am (the verb a avea)

Here is the confusion that catches almost every English speaker, and the reason this page exists. The word am has two completely separate jobs:

am = first-person singular of the lexical verb a avea, meaning "I have / I own."
am = the perfect-compus auxiliary, meaning "I have [done]" — a tense marker with no possession meaning.

They are spelled and pronounced identically. What tells them apart is what follows: a noun phrase signals possession; a participle signals the past tense.

Am o carte.

I have a book. (possession — a avea as a full verb)

Am citit cartea.

I've read the book. (past tense — am is the auxiliary, citit is the participle)

The two can even stack in one sentence, because a single am can do double duty when the verb itself is a avea:

Am avut o carte foarte bună despre asta.

I had a very good book about this. (the first 'am' is the auxiliary; 'avut' is the participle of a avea)

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Quick test: look at the word right after am. If it's a noun (or article + noun) — am o carte, am timp, am mașină — it's possession. If it's a -t participle — am citit, am mers, am văzut — it's the past tense. The grammar lives in what comes next, not in am itself.

Why these three, and not new endings?

A reasonable question: why doesn't Romanian just add a "past" ending the way it adds present endings? The answer is historical, and it's shared across the Romance family. Latin's synthetic perfect (cantavi "I sang") was gradually replaced in spoken Latin by a "have + participle" periphrasis, and Romanian inherited that shift. The future and the conditional were likewise rebuilt out of auxiliaries — a vrea for the future, a avea (in another set of forms) for the conditional. So the three auxiliaries are not arbitrary: they are the fossilized remains of three Latin verbs that the language pressed into grammatical service. Recognizing them as a closed, reusable kit — rather than as random irregular forms — is what lets you parse any compound tense on sight.

Common Mistakes

❌ Eu am citit are o carte bună.

Incorrect — mixing the auxiliary 'am citit' with a stray full verb 'are'.

✅ Am citit o carte bună.

I've read a good book.

❌ Eu voi vreau să merg.

Incorrect — stacking the future auxiliary 'voi' onto the full verb 'vreau'.

✅ Voi merge.

I will go. (future auxiliary 'voi' + bare infinitive)

❌ Casa este construit din lemn.

Incorrect — in the passive, the participle must agree: 'casa' is feminine.

✅ Casa este construită din lemn.

The house is built of wood.

❌ Ei a plecat la gară.

Incorrect — third-person plural takes the auxiliary 'au', not 'a'.

✅ Ei au plecat la gară.

They've left for the station.

❌ Am avut o carte. (intended: 'I've read a book')

Incorrect if you meant the past of 'to read' — 'avut' is the participle of a avea (to have), giving 'I had a book'.

✅ Am citit o carte.

I've read a book.

Key Takeaways

a avea → perfect compus: am, ai, a, am, ați, au
- participle.
a vrea (reduced) → literary future: voi, vei, va, vom, veți, vor
- bare infinitive.
a fi → passive (full forms + agreeing participle) and presumptive (oi, ăi, o, om, ăți, or
- participle).
Auxiliary forms are not the lexical verb. The clearest trap is am: noun after it = possession, participle after it = past tense.
The auxiliaries are a closed, reusable kit — learn them once and every compound tense becomes parseable.

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