Public-health and popular-science notices occupy a distinctive register in Polish: authoritative but agentless. They have to tell millions of strangers what to do without ever saying you — so they reach for the impersonal się, the modal należy ("one should"), the recommendation verb zaleca się ("it is recommended"), and softer warto ("it's worth"). Around this advice they build chains of cause and effect to explain why. The result is a register sitting between dry officialese and chatty popular science — exactly the prose a learner meets on a leaflet at the clinic, a public-information poster, or a health ministry website. The notice below is an original text written for this page; it imitates the genre but quotes no real source.
The notice (original)
Jak chronić się przed kleszczami
Wraz z nadejściem ciepłych dni wzrasta aktywność kleszczy, w związku z czym zaleca się zachowanie ostrożności podczas spacerów w lesie i na łąkach. Należy nosić odzież z długimi rękawami, ponieważ ogranicza to dostęp owadów do skóry. Po powrocie do domu warto dokładnie obejrzeć ciało. W przypadku zauważenia kleszcza powinno się go jak najszybciej usunąć, gdyż ryzyko zakażenia rośnie wraz z czasem żerowania. Jeżeli w miejscu ukąszenia pojawi się zaczerwienienie, zaleca się kontakt z lekarzem. Profilaktyka jest tu kluczowa: dzięki kilku prostym środkom można znacznie zmniejszyć ryzyko zachorowania.
This is invented for the lesson; it reproduces the style of a Polish health notice, not any particular leaflet.
What makes this the recommendation register
Impersonal się: advice with no addressee
...w związku z czym zaleca się zachowanie ostrożności podczas spacerów w lesie.
...in connection with which it is recommended to exercise caution during walks in the forest.
Zaleca się is the impersonal reflexive ("it is recommended" — literally "one recommends itself"). There is no subject and no you: the recommendation simply exists, issued by the genre itself. This is the workhorse of the register, and it is the same impersonal się you meet in impersonal sentences. Note that zaleca się governs a verbal noun, zachowanie ostrożności ("the keeping of caution"), not a finite verb — the advice is packaged as an abstract action.
W przypadku zauważenia kleszcza powinno się go jak najszybciej usunąć.
In the event of noticing a tick, one should remove it as quickly as possible.
Powinno się… usunąć ("one should remove") is the impersonal of the modal powinien — the neuter powinno plus się gives a subjectless "one should". W przypadku zauważenia ("in the case of noticing") is again a nominalised condition, and jak najszybciej ("as quickly as possible", the jak naj- superlative-of-urgency) sharpens the instruction without naming who must act.
Należy: the impersonal "one must / one should"
Należy nosić odzież z długimi rękawami.
One should wear clothing with long sleeves.
Należy + infinitive is the firmest of the agentless modals — "one is to / one should / it is incumbent on one". It is stronger than warto but softer than a bare command, and it carries an institutional, semi-official tone. Crucially it is impersonal: należy nosić has no subject, where English is forced into "one should wear" or "you should wear". For where należy sits among the obligation verbs (musieć, trzeba, powinien), see obligation: musieć vs trzeba.
The gradient of advice: warto, zaleca się, należy, powinno się
Po powrocie do domu warto dokładnie obejrzeć ciało.
After returning home it's worth examining the body carefully.
Warto + infinitive ("it's worth doing") is the gentlest rung — a friendly suggestion, not an order. The notice deliberately grades its force: warto (it's worth) for the optional precaution, zaleca się (it is recommended) for the standard recommendation, należy (one should) and powinno się (one ought to) for the firmer instructions. Reading the genre well means hearing this gradient — the writer is calibrating exactly how much pressure to apply, and the choice of modal is the dial.
Nominalization: actions repackaged as nouns
...ryzyko zakażenia rośnie wraz z czasem żerowania.
...the risk of infection grows with the feeding time.
Watch the verbal nouns pile up: zakażenia ("of infection", from zakazić się), żerowania ("of feeding", from żerować), and earlier zachowanie ("keeping"), zauważenia ("noticing"), zaczerwienienie ("reddening"). This is dense nominalization, the hallmark of scientific and administrative Polish: events become abstract nouns so they can be related to one another economically — see nominalization. Ryzyko zakażenia rośnie wraz z czasem żerowania compresses a whole causal story into one clause precisely because the verbs have been turned into nouns.
Cause–effect connectives: explaining the "why"
Należy nosić odzież z długimi rękawami, ponieważ ogranicza to dostęp owadów do skóry.
One should wear long-sleeved clothing, because this limits insects' access to the skin.
The notice does not just instruct; it justifies. Ponieważ ("because") introduces the reason, and the demonstrative to ("this") points back to the whole previous clause as the subject of ogranicza — a neat cohesion device. This pattern, advice + ponieważ/gdyż + reason, is what separates a recommendation notice from a bare list of rules.
...powinno się go usunąć, gdyż ryzyko zakażenia rośnie wraz z czasem żerowania.
...one should remove it, since the risk of infection grows with feeding time.
Gdyż ("since, for") is the more formal, written cousin of ponieważ — typical of this elevated-but-public register, leaning toward academic register. W związku z czym ("in connection with which") earlier links a fact (ticks are more active) to its consequence (be careful), and dzięki kilku prostym środkom ("thanks to a few simple measures") frames the positive cause of a good outcome.
Profilaktyka jest tu kluczowa: dzięki kilku prostym środkom można znacznie zmniejszyć ryzyko zachorowania.
Prevention is key here: thanks to a few simple measures, one can significantly reduce the risk of falling ill.
The closing sentence gathers the register's signature moves: the abstract noun profilaktyka ("prophylaxis/prevention") as topic, the impersonal można… zmniejszyć ("one can reduce"), the causal dzięki ("thanks to"), and another nominalization ryzyko zachorowania ("the risk of falling ill"). Authoritative, agentless, and explanatory all at once.
Why this register matters
Polish public information is built to command without commanding. It tells the whole population what to do while addressing no individual, by routing every instruction through the impersonal się, należy, powinno się, and the gentler warto — and it earns trust by explaining causes with ponieważ, gdyż, w związku z czym, and dzięki. Master this and you can read a clinic leaflet, a workplace safety poster, or a ministry website with ease, and you will recognise the same machinery, warmed up a little, in popular-science journalism.
Common Mistakes
❌ Należy nosisz odzież z długimi rękawami.
Incorrect — należy is impersonal and takes the infinitive, never a conjugated verb.
✅ Należy nosić odzież z długimi rękawami.
One should wear long-sleeved clothing.
❌ Zaleca się zachować ostrożność podczas spacerów. (in a notice)
Acceptable in speech, but the written notice register prefers a verbal noun: zaleca się zachowanie ostrożności.
✅ Zaleca się zachowanie ostrożności podczas spacerów.
The exercise of caution is recommended during walks.
❌ Warto że obejrzysz ciało.
Incorrect — warto takes the bare infinitive, not a że-clause with a finite verb.
✅ Warto dokładnie obejrzeć ciało.
It's worth examining the body carefully.
❌ Powinno się go usunąć, bo że ryzyko rośnie.
Incorrect — never stack bo and że; use ponieważ or gdyż for a written causal clause.
✅ Powinno się go usunąć, gdyż ryzyko zakażenia rośnie.
One should remove it, since the risk of infection grows.
The common thread is the impersonal, infinitive-loving grammar of advice: należy, warto, powinno się, and zaleca się all keep the addressee invisible and the instruction abstract — and you weld their reasons on with ponieważ or the more formal gdyż.
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Start learning Polish→Related Topics
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- Nominalization and Verbal-Noun ConstructionsC1 — How official and academic Polish turns whole clauses into noun phrases with verbal nouns in -anie/-enie/-cie — a dense nominal style and the C1 skill of decoding it.