Coordination joins equal pieces — two nouns, two verb phrases, two whole clauses — with a conjunction. English does most of this with just two words, and and but. Romanian has a noticeably finer toolbox, and choosing the right connector encodes the exact logical relation between the two halves: și (plain "and"), iar (a softer "and / while," signalling a mild contrast or a switch of topic), dar (the ordinary "but"), ci ("but rather," usable only after a negative), sau/ori ("or"), nici ("nor"), and deci ("so / therefore"). Two of these — iar and ci — have no clean one-word English match, which is exactly why English speakers reach for și and dar where a native would pick the sharper word. This page also covers what coordination lets you leave out (gapping and ellipsis) and the precise comma rules that go with each connector.
Coordinate like with like
The basic principle: a coordinator joins two constituents of the same kind — noun + noun, adjective + adjective, clause + clause. You cannot coordinate a noun with a clause.
Am cumpărat pâine și lapte.
I bought bread and milk. (two nouns joined by și)
E o casă mică, dar primitoare.
It's a small but welcoming house. (two adjectives joined by dar)
Vino devreme sau sună-mă dacă întârzii.
Come early or call me if you're running late. (two imperatives joined by sau)
și vs iar: two flavors of "and"
This is the distinction with no English equivalent. și is plain, additive "and" — it simply adds. iar also translates as "and," but it carries a mild contrast or a switch of topic between the two clauses: "and, for his part… / whereas…". Use iar when the second clause turns to a different subject and lightly contrasts it with the first.
Eu spăl vasele și fac și ordine.
I'll wash the dishes and tidy up too. (și — same subject, pure addition)
Eu spăl vasele, iar tu faci curat în baie.
I'll wash the dishes, and you clean the bathroom. (iar — switches to a new subject 'tu', mild division of labor)
Copiii s-au culcat, iar noi am mai stat de vorbă.
The kids went to bed, and we stayed up talking a bit. (iar — topic-switch from 'the kids' to 'we')
A reliable cue: if the second clause has a different subject that you are setting against the first ("I do X, and you do Y"), iar is usually the natural choice; și there would sound like a flat list. Iar is, in effect, "and-with-a-slight-turn." (Full treatment in și, iar, dar.)
dar vs ci: two flavors of "but"
dar is the all-purpose "but," for any contrast. ci is the corrective "but rather," and it has a hard restriction: it appears only after a negative, replacing a wrong assumption with the right one — nu X, ci Y ("not X, but rather Y"). You cannot use ci without a preceding negation.
Voiam să vin, dar n-am avut timp.
I wanted to come, but I didn't have time. (dar — ordinary contrast)
Nu e prost, ci doar leneș.
He's not stupid, but rather just lazy. (ci — corrects after the negation 'nu e prost')
N-am cumpărat mărul roșu, ci pe cel verde.
I didn't buy the red apple, but the green one. (nu… ci…: corrective)
Swapping them is a classic error: *Nu e prost, dar leneș is wrong because a correction after a negative wants ci; and *Voiam să vin, ci n-am avut timp is wrong because there is no negative for ci to correct. The test is simple: is there a "not X" being replaced by "rather Y"? If yes, ci; otherwise dar.
sau / ori, nici, deci
sau and ori both mean "or" (largely interchangeable; ori is a touch more emphatic/literary). nici is "nor / not even," the negative coordinator (and it forces the verb into the negative: nu… nici…). deci means "so / therefore," drawing a conclusion.
Mergem la munte sau rămânem acasă?
Are we going to the mountains or staying home? (sau — alternative)
Nu vorbește engleză, nici franceză.
He doesn't speak English, nor French. (nici — negative coordinator; the clause is already negated by 'nu vorbește')
Plouă, deci luăm umbrela.
It's raining, so we'll take the umbrella. (deci — conclusion)
Correlatives: și… și, sau… sau, nici… nici
Doubling a coordinator turns it into a correlative that brackets both members and intensifies the link — "both… and," "either… or," "neither… nor."
Vorbește și engleză, și franceză.
He speaks both English and French. (și… și = 'both… and')
Sau vii cu noi, sau rămâi singur acasă.
Either you come with us, or you stay home alone. (sau… sau = 'either… or')
Nu mănâncă nici carne, nici pește.
He eats neither meat nor fish. (nici… nici = 'neither… nor', with the verb negated)
Note that nici… nici keeps the verb negated (nu mănâncă) — Romanian uses negative concord, so the negative is marked on the verb even though nici is already negative. (More patterns in correlative conjunctions.)
Ellipsis and gapping under coordination
Coordination lets you omit material that the two halves share, so you don't repeat it. The most common type is gapping: deleting the repeated verb in the second clause, leaving just the new arguments. English does this too ("I drink coffee, and he tea"), and Romanian does it naturally, very often paired with iar.
Eu beau cafea, iar el (bea) ceai.
I drink coffee, and he (drinks) tea. (the verb 'bea' is gapped in the second clause)
Maria a luat trenul, iar Ion (a luat) autobuzul.
Maria took the train, and Ion (took) the bus. (the verb phrase is gapped)
Unora le place marea, altora (le place) muntele.
Some like the sea, others (like) the mountains. (gapping with a dative experiencer)
You can also share the subject across a coordination (so it isn't repeated), which is effortless in pro-drop Romanian:
A intrat, s-a așezat și a început să vorbească.
He came in, sat down and started to talk. (one dropped subject shared across three coordinated verbs)
Agreement with coordinated subjects
When two singular subjects are joined by și, the verb goes plural (just as in English). With sau the verb usually stays singular if the alternatives are singular, since only one applies.
Ana și Mihai vin diseară.
Ana and Mihai are coming tonight. (two subjects + și → plural verb 'vin')
Ana sau Mihai te va suna.
Ana or Mihai will call you. (alternative subjects + sau → singular verb)
The comma rules
Romanian punctuation is precise here, and it differs from loose English usage:
- No comma before plain și joining two elements: pâine și lapte, a venit și a plecat.
- Comma before dar, iar, ci (and before însă placed initially): Voiam să vin, *dar n-am avut timp; Eu spăl, **iar tu ștergi*.
- In a correlative și… și / sau… sau / nici… nici, put a comma before the second member: și engleză, *și franceză*; *nici carne, nici pește*.
Am sunat, dar nu a răspuns nimeni.
I called, but nobody answered. (comma before dar)
A deschis ușa și a aprins lumina.
He opened the door and turned on the light. (NO comma before plain și)
Common Mistakes
❌ A deschis ușa, și a aprins lumina. (comma before plain și)
Incorrect — no comma before și joining two verbs: A deschis ușa și a aprins lumina.
✅ A deschis ușa și a aprins lumina.
He opened the door and turned on the light.
❌ Nu e prost, dar leneș. (using dar to correct after a negative)
Incorrect — a correction after a negative needs ci: Nu e prost, ci leneș.
✅ Nu e prost, ci leneș.
He's not stupid, but rather lazy.
❌ Voiam să vin, ci n-am avut timp. (ci with no preceding negation to correct)
Incorrect — ci needs a 'not X' to replace; a plain contrast takes dar: Voiam să vin, dar n-am avut timp.
✅ Voiam să vin, dar n-am avut timp.
I wanted to come, but I didn't have time.
❌ Eu spăl vasele și tu faci curat. (flat și where a topic-switch wants iar)
Awkward — with a new contrasting subject, iar is the natural choice: Eu spăl vasele, iar tu faci curat.
✅ Eu spăl vasele, iar tu faci curat.
I'll wash the dishes, and you clean up.
❌ Nu mănâncă nici carne, ci pește. (mixing nici… with ci)
Incorrect — the correlative is nici… nici…: Nu mănâncă nici carne, nici pește.
✅ Nu mănâncă nici carne, nici pește.
He eats neither meat nor fish.
Key Takeaways
- Coordination joins like with like; Romanian's coordinators are finer-grained than English's.
- "And" splits into și (plain addition) and iar (mild contrast / topic-switch, "and for his part…"); "but" splits into dar (general) and ci ("but rather," only after a negation: nu X, ci Y).
- Other coordinators: sau/ori (or), nici (nor — keeps the verb negated), deci (so/therefore).
- Doubling gives correlatives și… și (both… and), sau… sau (either… or), nici… nici (neither… nor).
- Coordination licenses gapping/ellipsis of shared material (Eu beau cafea, iar el (bea) ceai) and lets pro-drop subjects be shared across verbs.
- Commas: none before plain și; a comma before dar / iar / ci; comma before the second member of a correlative.
Now practice Romanian
Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.
Start learning Romanian→Related Topics
- Word Order: An OverviewA2 — Romanian is a flexible SVO language: rich verb agreement and case-marked clitics keep the roles clear, so word order is free to do a different job — marking what's topic and what's focus. SVO is just the neutral baseline; subjects are usually dropped (pro-drop), object pronouns cling to the verb as clitics, and adjectives normally follow the noun. Information structure, not grammar, drives most reordering — so 'flexible' does not mean 'random'.
- Subordinate Clauses: An OverviewB1 — Romanian subordinates almost everything with a finite clause: where English uses an infinitive ('I want TO GO', 'too tired TO WORK'), Romanian uses a să-clause (vreau SĂ MERG, prea obosit CA SĂ lucreze). So mastering subordination is largely mastering when că (factual) versus să (irrealis/subjunctive) introduces the clause — plus the relative and adverbial clauses that fill out the system.
- Conjunctions: An OverviewA1 — A map of the Romanian conjunction system — the coordinators (și, sau/ori, dar/iar/însă, deci, nici) that join equals, and the subordinators (că, să, dacă, când, pentru că, deși) that hang one clause off another. The organizing insight is the că vs să split: că introduces asserted facts and takes the indicative, while să introduces wanted, possible, or commanded actions and takes the conjunctiv — the very same fact/non-fact decision that runs the whole mood system.
- Coordinators: și, iar, dar, însă, ciA2 — The Romanian coordinators that English flattens into 'and' and 'but'. și is plain 'and'; iar is a contrastive 'and' meaning roughly 'whereas' (Eu citesc, iar el doarme). Romanian then has three words for 'but': dar (the general one), însă (more formal, and unusually able to move inside the clause), and ci (the corrective 'but rather', which is obligatory after a negation: Nu e roșu, ci albastru).
- Correlative Conjunctions (atât...cât, nu numai...ci și)B2 — Romanian's paired connectors that work in two halves — atât... cât și (both... and), nu numai... ci și (not only... but also), nici... nici (neither... nor), fie... fie (either... or), pe de o parte... pe de altă parte (on the one hand... on the other), and cu cât... cu atât (the more... the more) — with the parallel-structure rule that keeps them balanced and the corrective ci that distinguishes 'not X but Y'.
- The Scope of NegationB2 — Romanian uses negative concord — every indefinite under negation goes negative and they REINFORCE rather than cancel (Nu văd pe nimeni niciodată = 'I never see anyone', three negatives, one meaning). And scope matters: Nu toți au venit ('not everyone came') ≠ Toți nu au venit ('everyone failed to come'). This page maps what nu negates, how far its reach extends, negation over quantifiers, nu… decât = 'only', and lexical ne-.