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Grammar

    Grammar
    • German Parts of Speech (Wortarten)



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    • Lassen — Causative & Helping Verb 🔓


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Cover Image for Lassen — Causative & Helping Verb 🔓
Grammar

Lassen — Causative & Helping Verb 🔓

Learn German lassen in its three roles: as a main verb meaning to leave/stop/quit, with modal verbs, and as a causative helping verb meaning to have something done or to allow something (Er lässt mich rauchen), including its Perfekt double-infinitive form.

German
Grammar
Lassen
Causative
Verbs
Language
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Telc-B1 Index

Lassen - Getting done by somebody else

to-allow or to-leave/stop/quit (Main Verb)

  • can work as main verb or helping verb
  • Akkusative verb

Conjugative form

#PersonKonjugation
👤ichlasse
🫵dulässt
🟦️/🟨/🟥er / sie / eslässt
👥wirlassen
👨‍👩‍👧‍👦ihrlasst
🧑‍🤝‍🧑sielassen
🎩Sielassen

Notice the vowel change:

  • lassen → du lässt → er/sie/es lässt

Sentence Structure

1. 🛑 = To leave/stop/quit to leave

Lassen as Main verb

  • Main verb Lassen come in 2nd position in conjugated form

 S +conjugated(lassen) + ...  \boxed { \text{ S +conjugated(lassen) + ... }} S +conjugated(lassen) + ... ​

Examplemeaning
Ich lasse das Auto zu Hause.I leave the car at home.
Lass die Tür offen.Leave the door open.
Ich lasse das Buch zu HauseI leave the book at home
Er lässt das Fenster offenHe leaves the window open
Sie lässt das Auto in der GarageShe leaves the car in the garage
Er lässt das Kind alleineHe leaves the child alone

2. 🧑‍🤝‍🧑 to let / allow someone to do something

lassen + Akkusativ + Infinitiv

Lassen as helping verb pushed main verb to end in infinitive form

 S + conjugated(lassen) + ... + infinitive(verb) \boxed { \text{ S + conjugated(lassen) + ... + infinitive(verb) }} S + conjugated(lassen) + ... + infinitive(verb) ​

Here, lassen means allow/let/ let something remain

Examplemeaning
Ich lasse ihn gehen.I let him go.
Meine Mutter lässt mich spielen.My mother lets me play.

3. 🔧 to have something done

lassen + Akkusativ + Infinitiv = have/get something done

 S + conjugated(lassen) + ... + infinitive(verb) \boxed { \text{ S + conjugated(lassen) + ... + infinitive(verb) }} S + conjugated(lassen) + ... + infinitive(verb) ​

Examplemeaning
Ich lasse mein Auto reparieren.I have my car repaired.
Sie lässt ihre Haare schneiden.She gets her hair cut.

4. 🧠 to stop / quit doing something

 S + conjugated(lassen) + ... + infinitive(verb) \boxed { \text{ S + conjugated(lassen) + ... + infinitive(verb) }} S + conjugated(lassen) + ... + infinitive(verb) ​

 conjugated(lassen) + S \boxed { \text{ conjugated(lassen) + S }} conjugated(lassen) + S ​

Examplemeaning
Lass das!Stop that !
Ich lasse das Rauchen.I quit smoking.
Lass mich in Ruhe!Leave me alone!

PII form of Lassen

haben + .... main verb + lassen

  • Haben is conjugated and come at 2nd positon while gelassen come at the end
  • Second verb will also come at the end before lassen
PersonPerfekt
ichhabe gelassen
duhast gelassen
er / sie / eshat gelassen
wirhaben gelassen
ihrhabt gelassen
sie / Siehaben gelassen

Verbs like Lassen

German verbs that behave somewhat like lassen

GermanMeaningExampleEnglish
lassenlet / have doneIch lasse ihn gehen.I let him go.
sehensee someone doIch sehe ihn laufen.I see him running.
hörenhear someone doIch höre ihn singen.I hear him singing.
fühlenfeel something happenIch fühle mein Herz schlagen.I feel my heart beating.
helfenhelp someone doIch helfe ihm arbeiten.I help him work.

A useful way to organize them

🟢 Modal verbs

  • können · müssen · wollen · sollen · dürfen · mögen
  • Ich muss arbeiten.

🔵 Let / cause

  • lassen · machen · bringen · zwingen
  • Ich lasse ihn arbeiten.
  • Ich zwinge ihn zu arbeiten.

🟣 Perception verbs

  • sehen · hören · fühlen
  • Ich sehe ihn arbeiten.
  • Ich höre ihn arbeiten.

🟡 Help

  • helfen
  • Ich helfe ihm arbeiten.

Lassen with Modal Verbs

  • Helping Main verb come in 2nd position in conjugated form
  • Lassen comes at the end in infinitive form
- Ich will das Buch zu Hause lassen - I want to leave the book at home
- Er muss das Fenster offen lassen - He must leave the window open
- Sie soll das Auto in der Garage lassen - She should leave the car in the garage
- Er will das Kind alleine lassen - He wants to leave the child alone

Modal verb + Main verb + Lassen

-  Ich soll sie gehen lassen - I should let her go
-  Er will sie gehen lassen - He wants to let her go

Lassen as Helping verb = Getting done from someone else

  • Lassen come in 2nd position in conjugated form
  • Main verb come at the end in infinitive form
- Er lässt mich nicht rauchen - He does not allow me to smoke
- Er lässt mich rauchen - He allows me to smoke
- Sie lässt ihre Tochter ins Kino in der Nacht gehen - She allows her daughter to go to cinema at night
- Er lässt (f+ak) seine Tochter das Auto fahren (n+ak) - He allows his daughter to drive the car
- Er lässt (f+ak) seine Tochter dem Jungen helfen (m+dat) - He allows his daughter to help the boy


Related: Verbs Overview · Reflexive Verbs · Passive Voice

Hitesh Sahu
Written by Hitesh Sahu, a passionate developer and blogger.

Mon Aug 10 2026

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Grammar/6-8-Lassen
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