If the contemporary verbal adverb -ąc means "while doing X", its twin — the anterior verbal adverb in -wszy / -łszy (imiesłów przysłówkowy uprzedni) — means "having done X". The two forms divide the timeline between them: -ąc marks an action during the main event, -wszy/-łszy marks an action completed before it. Polish encodes the whole "before vs. during" distinction in the morphology of the participle itself — something English handles only with extra words (having read vs. reading). This form is strongly bookish, so your goal is to recognize it confidently in reading far more than to deploy it in speech, where a plain clause sounds more natural.
What it means
The anterior verbal adverb expresses an action that finished before the action of the main verb. The default English rendering is "having done X".
Zjadłszy obiad, wyszedł na spacer.
Having eaten lunch, he went out for a walk.
Przeczytawszy list, zadzwoniła do matki.
Having read the letter, she called her mother.
The sequence is explicit and one-directional: first the eating finished, then the walk began; first she finished reading, then she phoned. Compare the simultaneity of -ąc: jedząc obiad, oglądał telewizję ("eating lunch, he watched TV") puts the two actions on top of each other, whereas zjadłszy obiad stacks them in order. The morphology alone tells the reader which it is.
Because the action is complete, the anterior adverb is built only from perfective verbs — the aspect of finished, bounded events. This is the mirror image of the -ąc form, which is imperfective-only. Aspect and the timeline are locked together:
| Form | Aspect | Timeline | Meaning |
|---|---|---|---|
| -ąc | imperfective | simultaneous (during) | "while doing X" |
| -wszy / -łszy | perfective | anterior (before) | "having done X" |
How to form it
Start from the masculine singular past tense of the perfective verb (the on form, e.g. zrobił, przyszedł), drop the final -ł, and look at what remains:
- If the stem now ends in a vowel, add -wszy.
- If the stem now ends in a consonant, add -łszy.
| Infinitive (perf.) | Past (on) | Anterior adverb | Meaning |
|---|---|---|---|
| zrobić | zrobił | zrobiwszy | having done |
| przeczytać | przeczytał | przeczytawszy | having read |
| napisać | napisał | napisawszy | having written |
| zjeść | zjadł | zjadłszy | having eaten |
| przyjść | przyszedł | przyszedłszy | having arrived |
| usiąść | usiadł | usiadłszy | having sat down |
The logic of the two endings is purely phonetic: after a vowel you get the smooth -wszy (zrobiwszy), and after a bare consonant the -łszy restores the ł that the past tense had attached (zjadł → zjadłszy). Reflexive verbs keep their się exactly as before:
Obudziwszy się, od razu sięgnął po telefon.
Having woken up, he immediately reached for his phone.
Like -ąc, it is indeclinable and demands the same subject
The anterior adverb shares the two structural properties of its -ąc sibling:
It is indeclinable. Zjadłszy is the only form there is — it does not change for gender or number. It modifies the verb, not a noun, so there is nothing for it to agree with.
Skończywszy pracę, poszli do domu.
Having finished work, they went home.
Skończywszy pracę, poszła do domu.
Having finished work, she went home.
The form skończywszy is identical whether the subject is plural (poszli) or feminine singular (poszła).
It requires the same subject as the main clause. Just as with -ąc, the doer of the anterior action must be the grammatical subject of the main verb. A dangling -wszy is an error.
Wszedłszy do pokoju, od razu zauważyła nieporządek.
Having entered the room, she immediately noticed the mess.
Here the one who entered and the one who noticed are the same person — the implied she of zauważyła — so the construction holds.
Register: strongly literary, increasingly archaic in speech
This is the crucial usage note. The anterior verbal adverb is strongly bookish (literary/formal) and, in everyday spoken Polish, verges on the archaic. You will meet it routinely in nineteenth-century prose — Sienkiewicz, Prus, Reymont — and in elevated contemporary writing, but you will almost never hear it in a café. Native speakers in conversation overwhelmingly prefer a normal time clause with gdy or kiedy plus a perfective verb, or simple coordination:
Gdy zjadł obiad, wyszedł na spacer.
When he had eaten lunch, he went out for a walk. (everyday spoken equivalent)
Najadłszy się do syta, podróżni ruszyli w dalszą drogę.
Having eaten their fill, the travellers set off again. (literary)
That last sentence has the unmistakable flavour of narrative prose. Both versions are correct; the difference is entirely register. For a learner, the practical rule is: recognize -wszy/-łszy instantly when you read it, but reach for gdy/kiedy + perfective when you speak. Overusing the anterior adverb in conversation sounds like you are narrating a saga.
Common Mistakes
1. Building it from an imperfective verb. The anterior adverb is perfective-only; the imperfective takes -ąc instead.
❌ Czytawszy gazetę, pił kawę.
Incorrect — czytać is imperfective; it cannot take -wszy.
✅ Czytając gazetę, pił kawę.
Reading the paper, he drank coffee. (simultaneous → use -ąc)
2. Choosing -wszy after a consonant stem (should be -łszy). After a bare consonant the ł stays.
❌ Zjadwszy obiad, wyszedł.
Incorrect — the stem zjad- ends in a consonant, so it must be zjadłszy.
✅ Zjadłszy obiad, wyszedł.
Having eaten lunch, he left.
3. Writing plain l instead of ł in -łszy. The stroke is not optional; łszy and lszy are different.
❌ Przyszedlszy do domu, zasnął.
Incorrect — must be przyszedłszy, with ł.
✅ Przyszedłszy do domu, zasnął.
Having come home, he fell asleep.
4. Dangling the participle on a different subject. Same rule as -ąc: the doer must be the main-clause subject.
❌ Wróciwszy do domu, czekała na mnie paczka.
Incorrect — implies the parcel returned home.
✅ Wróciwszy do domu, znalazłem paczkę.
Having come home, I found a parcel.
Key Takeaways
- -wszy / -łszy = "having done X": an action completed before the main verb, built from perfective verbs (from the masculine past: vowel stem → -wszy, consonant stem → -łszy).
- It is the anterior counterpart to the simultaneous -ąc form; Polish marks before vs. during in the participle's ending alone.
- Like -ąc, it is indeclinable and demands the same subject as the main clause.
- It is strongly literary, nearly archaic in speech — recognize it in reading; in conversation use gdy / kiedy + perfective instead.
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Start learning Polish→Related Topics
- The Contemporary Verbal Adverb (-ąc)C1 — The present (contemporary) verbal adverb in -ąc — 'while doing X' — an indeclinable form built from imperfective verbs that marks an action simultaneous with the main verb and sharing its subject.
- The Perfective: Completion, Result, Single EventB1 — The perfective aspect views an action as a single bounded whole that reached its endpoint — it foregrounds the result and the boundary, lines up events in narrative, and crucially has no present tense.
- Participial Clauses (-ąc, -wszy)C1 — How formal Polish compresses subordinate clauses into adverbial participles in -ąc and -wszy — and the iron same-subject rule that makes a dangling participle ungrammatical.
- Literary and Poetic StyleC1 — How literary Polish exploits free word order, participial clauses, the vocative, and archaic forms for rhythm and rhetorical weight.
- Annotated Text: SienkiewiczC1 — The opening of Sienkiewicz's Quo Vadis annotated for 19th-century literary prose — participial -ąc/-wszy clauses, inverted word order, archaic forms, periodic sentences and dense subordination.