Humanities Languages German Verbs - wissen (to know) conjugated in all its tenses Share Flipboard Email Print Languages German Vocabulary Basics History & Culture Pronunciation & Conversation Grammar English as a Second Language Spanish French Italian Japanese Mandarin Russian English Grammar View More by Michael Schmitz Michael Schmitz, creator smarterGerman, wrote articles about Germany and the German culture, as well as the book "How to Learn German Faster." Updated February 01, 2019 In the following chart you will find the conjugation of the irregular German verb wissen (to know). Although it is not a modal verb, the conjugation of wissen follows the same pattern as the modal verbs. Like the modals, and unlike normal German verbs, wissen has the same form for ich (1st person sing.) and er, sie, es (3rd person sing.). German, like many other languages, has two different verbs that can correspond to the single English verb "to know." Like Spanish, Italian and French, for example, German makes a distinction between knowing or being familiar with a person or thing (kennen) AND knowing a fact (wissen). The verb wissen is a stem-changing verb. That is to say, the infinitive's stem vowel i changes to eiin all the singular present tense forms (weiß), and to u in the past participle (gewusst). In many ways, as we said above, it behaves like a modal verb. Except for ihr wisst (formerly wißt), spelling reform has not affected wissen, so you should note that its singular forms are still spelled with an ess-zett (ß, except in Swiss German), while the plural forms use a double-s (ss). This verb chart uses the new German spelling (die neue Rechtschreibung). Wissen Conjugations PRÄSENS(Present) PRÄTERITUM(Preterite/Past) PERFEKT(Pres. Perfect) SINGULAR ich weißI know ich wussteI knew ich habe gewusstI knew, have known du weißtyou know du wusstestyou knew du hast gewusstyou knew, have known er/sie weißhe/she knows er/sie wusstehe/she knew er/sie hat gewussthe/she knew, has known PLURAL wir/Sie/sie wissenwe/you/they have to wir/Sie/sie wusstenwe/you/they knew wir/Sie/sie haben gewusstwe/you/they knew, have known ihr wisstyou (pl.) know ihr wusstetyou (pl.) knew ihr habt gewusstyou (pl.) knew, have known Sample Sentences/Idioms Er weiß Bescheid.He knows all about it. (He's been kept informed.)Weißt du, wann der Bus kommt?Do you know when the bus is coming?Ich habe nicht Bescheid gewusst.I didn't know a thing about it. Related Pages The 20 Most-Used German VerbsRanked by frequency of use. With conjugations and examples. German for BeginnersOur free online German course! Continue Reading Conjugating the German Verb Wissen, Meaning "to Know" How Do You Say and Use "Know" in German? How to Conjugate the German Verbs Kennen, "to Know" The German Verb Nehmen (to Take) in All Tenses How to Conjugate German Modal Verbs Muessen, Sollen, and Wollen Learning German Verb Conjugations How to Conjugate German Modal Verbs Duerfen, Koennen, Moegen Learn German Verb Conjugations of Essen (To Eat) in Past Tenses How Do You Conjugate the German Verb Verstehen? How to Conjugate the German Verb "Stehen" (to Stand) How to Conjugate the German Verb Anfangen Learn to Conjugate "Haben" (to Have) in All Tenses and Moods How to Conjugate the German Verb "Helfen" (to Help) Master the Most Popular German Verbs Conjugation of Lesen: German Verb Lesen How Do You Conjugate the German Verb Schreiben?