The Polish verb "wiedzieć" means "to know (facts)" in English. It is an irregular verb. Below you'll find the complete conjugation tables for "wiedzieć" across all 5 tenses. New to Polish verbs? Start with the Polish verb guide.
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How to Conjugate "wiedzieć" in the Present Tense
Czas teraźniejszy Actions happening now or regularly| Person | English | Conjugation |
|---|---|---|
| ja | I | wiem |
| ty | you (informal) | wiesz |
| on/ona/ono | he/she/it | wie |
| my | we | wiemy |
| wy | you all | wiecie |
| oni/one | they | wiedzą |
On wie, kiedy jest egzamin.
He knows when the exam is.
How to Conjugate "wiedzieć" in the Past Tense
Czas przeszły Completed actions in the past| Person | English | Conjugation |
|---|---|---|
| ja | I | wiedziałem |
| ty | you (informal) | wiedziałeś |
| on/ona/ono | he/she/it | wiedział |
| my | we | wiedzieliśmy |
| wy | you all | wiedzieliście |
| oni/one | they | wiedzieli |
Ona wiedziała, jak to zrobić.
She knew how to do it.
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Try VerbPal FreeHow to Conjugate "wiedzieć" in the Future Tense
Czas przyszły Actions that will happen| Person | English | Conjugation |
|---|---|---|
| ja | I | będę wiedział |
| ty | you (informal) | będziesz wiedział |
| on/ona/ono | he/she/it | będzie wiedział |
| my | we | będziemy wiedzieli |
| wy | you all | będziecie wiedzieli |
| oni/one | they | będą wiedzieli |
On będzie wiedział odpowiedź.
He will know the answer.
How to Conjugate "wiedzieć" in the Conditional Tense
Tryb warunkowy Hypothetical situations and polite requests| Person | English | Conjugation |
|---|---|---|
| ja | I | wiedziałbym |
| ty | you (informal) | wiedziałbyś |
| on/ona/ono | he/she/it | wiedziałby |
| my | we | wiedzielibyśmy |
| wy | you all | wiedzielibyście |
| oni/one | they | wiedzieliby |
Ona wiedziałaby, jak pomóc.
She would know how to help.
How to Conjugate "wiedzieć" in the Imperative Tense
Tryb rozkazujący Commands and requests| Person | English | Conjugation |
|---|---|---|
| ja | I | wiedz |
| ty | you (informal) | wiedz |
| on/ona/ono | he/she/it | niech wie |
| my | we | wiedzmy |
| wy | you all | wiedzcie |
| oni/one | they | niech wiedzą |
Niech on wie o zmianie planów.
Let him know about the change of plans.
Frequently Asked Questions About "wiedzieć"
Is "wiedzieć" regular or irregular in Polish?
"Wiedzieć" is an irregular Polish verb, meaning its conjugation does not follow standard patterns and must be memorized individually.
What does "wiedzieć" mean in English?
The Polish verb "wiedzieć" means "to know (facts)" in English.
How do you conjugate "wiedzieć" in the present tense?
In the present tense (Czas teraźniejszy): ja → wiem, ty → wiesz, on/ona/ono → wie, my → wiemy, wy → wiecie, oni/one → wiedzą.
How many tenses does "wiedzieć" have in Polish?
"Wiedzieć" is conjugated across 5 tenses in Polish: Present, Past, Future, Conditional, Imperative.
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