Humanities › Languages German Verb Conjugations - Lassen (To Let, Leave, and Allow) Share Flipboard Email Print Maxim Chuvashov / Getty Images Languages German Grammar Basics History & Culture Pronunciation & Conversation Vocabulary English as a Second Language Spanish French Italian Japanese Mandarin Russian English Grammar View More by Hyde Flippo Hyde Flippo taught German for 28 years at the high school and community college levels and has published several books on German language and culture. Updated August 13, 2018 The verb lassen has many meanings. It can be used alone in its basic meaning of "let" or "leave," but it also functions as a modal verb that modifies or alters the meaning of another verb. In this function, lassen can mean to "have or get something done," as in er lässt sich die Haare schneiden ("he's having his hair cut/getting a haircut"). See other examples in the conjugation chart below.Principal Parts: lassen (lässt) • ließ • gelassenImperative (Commands): (du) Lass(e)! | (ihr) Lasst! | Lassen Sie!Also see The Many Meanings of lassenPresent Tense - PräsensDEUTSCHENGLISHSINGULARich lasseI let/leaveI am letting/leavingdu lässtyou let/leaveyou are letting/leavinger lässt sie lässt es lässthe lets/leaveshe is letting/leavingshe lets/leavesshe is letting/leavingit lets/leavesit is letting/leavingPLURALwir lassenwe let/leavewe are letting/leavingihr lasstyou (guys) let/leaveyou (guys) are letting/leavingsie lassenthey let/leavethey are letting/leavingSie lassenyou let/leaveyou are letting/leavingExamples:Wir lassen einen Arzt kommen.We'll send for a doctor. ("have a doctor come")Lass das! Stop that! Leave that alone! Forget that!Lass mich in Ruhe! Leave me alone! PAST TENSES • VERGANGENHEITSimple Past Tense - ImperfektDEUTSCHENGLISHSINGULARich ließI let/leftdu ließestyou let/lefter ließsie ließes ließhe let/leftshe let/leftit let/leftPLURALwir ließenwe let/leftihr ließtyou (guys) let/leftsie ließenthey let/leftSie ließenyou let/left Compound Past Tense (Pres. Perfect) - PerfektDEUTSCHENGLISHSINGULARich habe gelassenI have let/leftI let/leftdu hast gelassenyou have let/leftyou let/lefter hat gelassen sie hat gelassen es hat gelassenhe has let/lefthe let/leftshe has let/leftshe let/leftit has let/leftit let/leftPLURALwir haben gelassenwe have let/leftwe let/leftihr habt gelassenyou (guys) have let/leftyou let/leftsie haben gelassenthey have let/leftthey let/leftSie haben gelassenyou have let/leftyou let/left Past Perfect Tense - PlusquamperfektDEUTSCHENGLISHSINGULARich hatte gelassenI had let/leftdu hattest gelassenyou had let/lefter hatte gelassensie hatte gelassenes hatte gelassenhe had let/leftshe had let/leftit had let/leftPLURALwir hatten gelassenwe had let/leftihr hattet gelassenyou (guys) had let/leftsie hatten gelassenthey had let/leftSie hatten gelassenyou had let/left Continue Reading