You have met să in many separate roles — after vreau, after trebuie, in purpose clauses, as a command, as a deliberative question. This page does something different: it puts them side by side and makes you practise switching between them. The goal is not to learn a new rule but to build a single reflex that fires automatically: spot the trigger → produce să + conjunctiv → put the verb in the person of the intended subject. If the triggers list is the reference shelf, this is the gym. Work through each section actively — predict the answer before you read it.
The one reflex that covers almost everything
Here is the single most useful fact for an English speaker: almost every English "to + verb" turns into a Romanian să-clause. "I want to leave", "It's important to sleep", "I left early to catch the bus", "Let him come" — every one of these English infinitives or "let"-phrases becomes să + a finite verb in Romanian. So your trained reflex is a three-step chain:
- Spot the trigger. Is there a want / need / can / in order to / let / should / it's important that lurking in the English?
- Produce să
- conjunctiv.
- Set the person. Conjugate the verb for whoever actually does the action, not for the main verb's subject.
Step 3 is where English gives you no help (its infinitive is frozen: "they want to go"), so it is where most errors hide. We drill it hardest below.
Drill 1: after volition, modals, and impersonals
These are the bread-and-butter triggers. Read each English cue, build the Romanian in your head, then check.
Vreau să mă mut într-un apartament mai mare.
I want to move into a bigger apartment. (trigger: vreau)
Nu pot să vin diseară, am treabă.
I can't come tonight, I'm busy. (trigger: pot)
Trebuie să-mi reînnoiesc pașaportul luna asta.
I have to renew my passport this month. (trigger: trebuie)
E important să citești contractul înainte să semnezi.
It's important to read the contract before signing. (impersonal trigger: e important)
Merită să vezi filmul pe ecran mare.
It's worth seeing the film on a big screen. (impersonal trigger: merită)
Notice that the impersonal triggers (e important, merită, e greu, e posibil) work exactly like the verbal ones: they steer toward a not-yet-real event, so they take să. The cue word in English is often a bare "to" — important to read, worth seeing — which is your signal.
Drill 2: purpose — ca să vs bare să
Purpose clauses are where learners most need to choose between să and ca să. The rule: use ca să ("in order to / so that") when the purpose clause has its own explicit subject or you want to emphasise the goal; bare să is fine when the subject is shared and adjacent. (The full distinction lives on the subordination overview; here we just drill the reflex.)
Am plecat mai devreme ca să prind autobuzul.
I left earlier (in order) to catch the bus. (same subject — ca să or să both work)
Vorbește mai rar, ca să te înțeleagă toți.
Speak more slowly so that everyone understands you. (new subject 'toți' — ca să needed)
Ți-am lăsat cheia ca să poți intra.
I left you the key so you can get in. (new subject 'you' — ca să)
The trap is dropping ca when a new subject appears. Vorbește mai rar să te înțeleagă toți feels truncated; with a fresh subject (toți understanding, not you), the natural connector is ca să. When in doubt and a new subject enters the purpose clause, insert ca.
Drill 3: the command and deliberation uses
Să is not only a complement — it also commands and questions on its own. These are the standalone uses, drilled here so you switch into them smoothly. (Forms and tone are covered in the conjunctiv as a softened command and deliberative questions.)
Să intre următorul, vă rog!
Let the next person come in, please! (third-person command — only să can do this)
Să nu uiți să cumperi pâine!
Don't forget to buy bread! (softened negative command)
Ce să fac acum? N-am nicio idee.
What am I to do now? I have no idea. (deliberation — no 'should' needed)
Să te aștept sau să plec singur?
Should I wait for you or go on my own? (deliberative offer/question)
The same să threads through all of these: complement (să cumperi after the command frame), command (Să intre!), and deliberation (Ce să fac?). Recognising that it is one device wearing several hats is what makes the system feel coherent rather than like five separate rules.
Drill 4: spot the trigger — and watch the person
This is the highest-value drill. In each pair, the trigger stays the same but the subject of the embedded verb changes, so the conjunctiv form must change with it. English freezes the infinitive; Romanian does not.
| English | Romanian | Embedded subject |
|---|---|---|
| I want to leave. | Vreau să plec. | I (1sg) |
| I want him to leave. | Vreau să plece (el). | he (3sg) |
| I want them to leave. | Vreau să plece (ei). | they (3pl) |
| I want us to leave. | Vreau să plecăm. | we (1pl) |
Vreau să plec mâine dimineață.
I want to leave tomorrow morning. (I leave)
Vreau să plece și copiii cu noi.
I want the kids to come along with us too. (they leave — 3rd person form)
Profesorul vrea ca toți studenții să predea eseul vineri.
The teacher wants all the students to hand in the essay on Friday. (new subject → ca, verb in 3pl)
When the embedded subject is different from the main subject and is spelled out, Romanian inserts ca before să and the subject usually sits between them: Vreau *ca el să plece. With a shared subject you never use *ca: Vreau să plec (not *Vreau ca eu să plec). Drilling this contrast is the single best use of your practice time, because it is the error English speakers make most.
Putting it together: a mini-dialogue
Watch how many să-clauses a single short exchange contains — this is why mastering the reflex pays off so fast.
— Vrei să mergem la film diseară? — Aș vrea, dar trebuie să termin un raport. Să mergem mâine?
— Do you want to go to a film tonight? — I'd love to, but I have to finish a report. Shall we go tomorrow instead?
In three short sentences: să mergem (after vrei), să termin (after trebuie), and standalone deliberative Să mergem? — every "to + verb" rendered as să, every verb in the right person. That density is normal in real Romanian.
Common Mistakes
❌ Vreau a pleca acum.
Incorrect — English 'to leave' is not a Romanian infinitive here; it must be a să-clause: Vreau să plec.
✅ Vreau să plec acum.
I want to leave now.
❌ Vreau să plec copiii cu mine. (wrong person)
Incorrect — if the kids do the leaving, the verb must be 3rd person: Vreau să plece copiii cu mine.
✅ Vreau să plece copiii cu mine.
I want the kids to leave with me.
❌ Vreau ca eu să plec.
Incorrect — with a shared subject you drop 'ca': just Vreau să plec.
✅ Vreau să plec.
I want to leave.
❌ Vorbește mai rar să te înțeleagă toți. (new subject, no 'ca')
Awkward — with a fresh subject in the purpose clause, insert 'ca': ca să te înțeleagă toți.
✅ Vorbește mai rar, ca să te înțeleagă toți.
Speak more slowly so everyone understands you.
❌ Ar trebui eu să fac ce acum?
Un-idiomatic — a simple deliberation needs only the bare standalone: Ce să fac acum?
✅ Ce să fac acum?
What am I to do now?
Key Takeaways
- Almost every English "to + verb" (and "let him", and "in order to") becomes a Romanian să-clause — reach for să, not the infinitive.
- The reflex is three steps: spot the trigger → produce să + conjunctiv → conjugate the verb for its own subject.
- Step three is the hardest because English freezes the infinitive; Romanian inflects it: Vreau să plec / să plece / să plecăm.
- A different, named embedded subject brings in ca: Vreau ca ei să vină; a shared subject drops it: Vreau să vin.
- The same să does complement, command (Să intre!), and deliberation (Ce să fac?) — one device, several jobs.
Now practice Romanian
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Start learning Romanian→Related Topics
- Conjunctiv Triggers: A Reference ListB1 — A scannable, grouped reference of everything that forces să in Romanian — volition, necessity, permission, emotion, impersonals, purpose, aspectuals, and conjunctions — unified by one idea: the conjunctiv marks events not asserted as fact.
- 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.
- The Conjunctiv (să-Subjunctive): OverviewA2 — An introduction to Romanian's most important feature — the să + verb construction that replaces the infinitive after want, can, and must.
- The Conjunctiv as a Softened CommandB1 — How a standalone să-clause works as an indirect, gentler order — Să închizi ușa!, Să nu uiți! — and why it is the only way to command a third person — Să intre!, Să vină și ei! — plus its use in impersonal instructions and recipes.
- Conjunctiv in Questions and Deliberation (Să plec?)B1 — The standalone să-conjunctiv used as a question — Să plec? (Should I leave?), Ce să fac?, Să comand eu? — to deliberate, ask for instructions, or offer, where English must add 'should' or 'shall'.