Impersonal się and the się-Passive | Polish Grammar

When a Pole wants to say "one does", "you do", "people do" — a statement true of anyone, with no particular subject — the natural tool is not a pronoun. It is się plus a third-person-singular verb. Tu się nie pali ("No smoking here"), Jak się to mówi? ("How do you say this?"), W Polsce dużo się czyta ("In Poland people read a lot"). This impersonal się is everywhere — on signs, in recipes, in rules, in generalisations — and it is the construction English speakers most often fail to reach for, because English splits the same job across vague "you", impersonal "one", and the passive. This page covers the impersonal się and its close cousin, the się-passive.

The form: 3rd-singular verb + się, no subject

The impersonal się construction has a fixed shape:

(no subject) + verb in the 3rd person singular + się

There is no ja, no ty, no ludzie — nobody is named, and the verb sits in its bare 3sg form. The meaning is generic: it holds for people in general.

Tu się nie pali.

No smoking here. (lit. 'here one does not smoke' — no subject, 3sg pali + się)

Jak się to robi?

How do you do this? ('you' = anyone — generic, not the listener)

W tym sklepie nie płaci się gotówką.

You don't pay cash in this shop. (a general rule about the shop)

Mówi się, że zima będzie mroźna.

They say (it is said) the winter will be harsh. (mówi się — the classic 'it is said')

This is the single most useful pattern for talking about how things are generally done. The English versions reach for different words each time — no smoking, how do you, you don't pay, they say — but Polish uses one mechanism: 3sg verb + się.

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The mental model: imagine an unspecified "one" as the subject, then delete it and add się. "One does not smoke here" → Nie pali się tu. Once the generic-"one" instinct is in place, the construction comes automatically — and it is the neutral, default register, not stiff or bookish the way English "one does" feels.

Why English speakers under-use it

English has three half-solutions and no single clean one:

Generic "you": You can't park here — but this risks sounding like it addresses the listener.
Impersonal "one": One does not smoke here — grammatically right, but stiff and formal.
Passive: Smoking is not permitted here — wordy, bureaucratic.

Polish folds all three into the relaxed, everyday się. Where an English speaker hesitates between "you", "one", and a passive, the Pole simply says się:

Jak się mówi „cheese

How do you say 'cheese' in Polish? (mówi się — the standard way to ask)

W Polsce zdejmuje się buty w domu.

In Poland you take your shoes off indoors. (a cultural generalisation)

Po polsku pisze się to przez „ż

In Polish you write this with 'ż'. (instructional 'you' = anyone)

This is the register for explaining customs, rules, and how-to, and for the impersonal "they say". If you want a single takeaway from this page: when you are tempted to say generic "you" or "one" in Polish, say się.

Signs, rules and prohibitions

The impersonal się is the default voice of notices and regulations, especially with the modal można ("may"), nie wolno ("must not"), trzeba ("must"):

Tu nie wolno się kąpać.

No swimming here. (nie wolno + się — prohibition on a sign)

Tego nie powinno się robić.

One shouldn't do this. (general moral statement)

Bilety kupuje się w automacie.

Tickets are bought from the machine. (instruction — agentless)

Note that nie wolno się palić and tu się nie pali both ban smoking; the first stacks się onto a modal, the second uses the bare 3sg. Both are idiomatic.

The się-passive: backgrounding the agent with an object

A related construction handles sentences that have a notional object but no expressed agent. This is the się-passive (also called the impersonal się with an object). It is the everyday spoken alternative to the formal być / zostać passive.

There are two patterns, and the difference is which case the affected thing takes:

(a) Object stays accusative — pure impersonal. The verb stays 3sg; the thing acted on is a plain accusative object. The focus is on the activity, agent unknown:

Sprzedaje się tu świeże ryby.

They sell fresh fish here. (ryby = accusative object; verb stays 3sg sprzedaje)

Buduje się nową szkołę.

A new school is being built. (szkołę = accusative; agentless)

(b) The thing becomes a nominative subject — and the verb agrees with it. Here the affected thing is promoted to subject, takes the nominative, and the verb agrees with it in number and gender. This reads more like a true passive ("X is being Xed"):

Mieszkanie się sprzedaje.

The flat is for sale / is being sold. (mieszkanie = nominative subject; verb agrees)

Te książki dobrze się sprzedają.

These books sell well. (książki nominative plural → sprzedają plural)

The same idea, two grammars: Sprzedaje się mieszkanie (object accusative, verb frozen 3sg) and Mieszkanie się sprzedaje (subject nominative, verb agrees). Both mean "the flat is being sold / is for sale". Pattern (b) is especially common for properties that "sell themselves" or processes that happen "on their own":

Drzwi otwierają się automatycznie.

The doors open automatically. (drzwi = subject; się marks the spontaneous/passive sense)

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Quick disambiguation: if the thing acted on is in the accusative (mieszkanie → mieszkanie... but feminine szkołę, masculine dom show it clearly), the verb is frozen 3sg. If it's in the nominative and the verb agrees in number/gender, you've promoted it to subject. With neuter nouns like mieszkanie (acc = nom) only the verb agreement reveals which pattern you're in.

Impersonal się vs the być/zostać passive

Why prefer się over a "proper" passive? Register and ease. The się-construction is shorter, more colloquial, and overwhelmingly preferred in speech. The periphrastic być/zostać passive is heavier and leans formal or written. Compare three ways to say "the letter is being sent":

Construction	Polish	Register
się-passive	List się wysyła.	everyday, spoken
zostać passive	List zostaje wysłany.	(formal) written/official
-no/-to impersonal (past)	Wysłano list.	(formal) news/report

A crucial limitation: the impersonal się cannot normally name the agent. You cannot graft a przez + accusative agent phrase onto a się-impersonal the way you can onto a zostać passive. If you must say by whom, switch to the być/zostać passive. And for agentless statements in the past, Polish prefers the distinct -no/-to impersonal (sprzedano mieszkanie "the flat was sold"), covered on its own page — note that się-impersonals in the past tense are limited, which is exactly the gap -no/-to fills.

Mówi się o nim same dobre rzeczy.

People say only good things about him. (się-impersonal — no agent named)

For the wider comparison of all the agentless strategies, see passive and impersonal strategies and the syntax-level treatment in impersonal sentences.

A note on past and reflexive collisions

Two cautions. First, in the present the impersonal się is fully productive, but in the past it is largely replaced by the -no/-to form: you say Sprzedano dom ("the house was sold"), not a się-impersonal. Second, an impersonal się sentence can look identical to a reflexive or reciprocal one — myje się alone could be "he washes himself" or impersonal "one washes". Context (presence of a subject, the meaning) resolves it; a named subject means it is reflexive, no subject and a generic reading means it is impersonal.

Common Mistakes

Using a personal pronoun where Polish wants impersonal się. Asking "how do you say…?" with ty sounds like you're asking about the listener specifically. The generic question uses się.

❌ Jak ty mówisz „dziękuję

Incorrect for the general question — this asks how *you personally* say it.

✅ Jak się mówi „dziękuję

How do you say 'thank you' in Polish?

Putting the impersonal verb in the plural. The impersonal się verb is frozen in the 3rd-person singular, even though the meaning is "people in general". Don't make it plural to match "people".

❌ Tu się nie palą.

Incorrect — the impersonal verb stays 3rd-singular: pali, not palą.

✅ Tu się nie pali.

No smoking here.

Trying to add a przez-agent to a się-impersonal. The się construction backgrounds the agent and normally can't name it. To say "by X", switch to the zostać passive.

❌ Mieszkanie się sprzedaje przez agencję.

Incorrect/odd — to name the agent, use the periphrastic passive.

✅ Mieszkanie jest sprzedawane przez agencję.

The flat is being sold by the agency.

Using a się-impersonal in the past instead of -no/-to. For agentless past statements, Polish reaches for the -no/-to impersonal, not a past-tense się-impersonal.

❌ Sprzedawało się dom w zeszłym roku.

Awkward — the natural agentless past is the -no/-to form.

✅ Sprzedano dom w zeszłym roku.

The house was sold last year.

Key Takeaways

Impersonal się = 3rd-singular verb + się with no subject, meaning generic "one / you / people do".
It is the everyday default for signs, rules, recipes, customs, and "it is said" (mówi się) — not stiff like English "one".
The się-passive handles agentless sentences with an object: accusative object + frozen 3sg (sprzedaje się mieszkanie) or nominative subject + agreeing verb (mieszkanie się sprzedaje).
It cannot name the agent — for "by X", use the być/zostać passive.
In the past, prefer the -no/-to impersonal.

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