Die Verben lassen, brauchen und werden

• The verbs "lassen", "brauchen" and "werden" can function as main verbs or as auxiliary verbs, depending on the context.
• Accurately distinguishing them helps in using German more precisely.

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1️⃣ The verb "lassen"

🔹 1.1. When "lassen" functions as a main verb

"Lassen" means "to leave", "to let", or "to allow".

Structure:

Subject + lassen (conjugated) + accusative + (place/complement)

Examples:

• Ich lasse mein Handy zu Hause. (I leave my phone at home.)
• Er lässt die Tür offen. (He leaves the door open.)

Note:

• In this case, "lassen" expresses leaving or allowing an object to remain somewhere.

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🔹 1.2. When "lassen" functions as an auxiliary verb

"Lassen" can combine with an infinitive to express permission, request, or commissioning an action.

Structure:

Subject + lassen (conjugated) + object (accusative) + infinitive

Examples:

• Ich lasse mein Auto reparieren. (I have my car repaired.)
• Er lässt seine Haare schneiden. (He has his hair cut.)

Note:

• Used when someone else performs the action requested or allowed by the subject.

Example (emphasizing permission):

• Ich lasse dich gehen. (I let you go.)

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2️⃣ The verb "brauchen"

🔹 2.1. When "brauchen" functions as a main verb

"Brauchen" means "to need" and takes the accusative case.

Structure:

Subject + brauchen (conjugated) + accusative

Examples:

• Ich brauche einen neuen Laptop. (I need a new laptop.)
• Sie braucht Hilfe. (She needs help.)

Note:

• Expresses need or necessity.

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🔹 2.2. When "brauchen" functions as an auxiliary verb

"Brauchen" can combine with "zu + infinitive" to indicate no necessity.

Structure:

Subject + brauchen (conjugated) + nicht/kein + zu + infinitive

Examples:

• Du brauchst nicht zu kommen. (You don’t need to come.)
• Er braucht kein Ticket zu kaufen. (He doesn’t need to buy a ticket.)

Note:

• This form is common in spoken German to express something unnecessary.
• Typically used in negative or conditional sentences.

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3️⃣ The verb "werden"

🔹 3.1. When "werden" functions as a main verb

"Werden" means "to become" or "to turn into".

Structure:

Subject + werden (conjugated) + nominative

Examples:

• Er wird Arzt. (He becomes a doctor.)
• Es wird kalt. (It is getting cold.)

Note:

• Used to describe change or transformation.

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🔹 3.2. When "werden" functions as an auxiliary verb

📌 "Werden" is used to form the future tense (Futur I) or passive voice (Passiv).

3.2.1. "Werden" in the future tense (Futur I)

Structure:

Subject + werden (conjugated) + infinitive

Examples:

• Ich werde morgen nach Berlin fahren. (I will go to Berlin tomorrow.)
• Sie wird einen Brief schreiben. (She will write a letter.)

Note:

• Used to talk about future events.

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3.2.2. "Werden" in the passive voice (Passiv)

Structure:

Subject + werden (conjugated) + past participle

Examples:

• Das Haus wird gebaut. (The house is being built.)
• Der Brief wird geschrieben. (The letter is being written.)

Note:

• Describes an action without mentioning who performs it.

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✅ Summary table

Verb	As a main verb	As an auxiliary verb
lassen	Ich lasse mein Buch hier. (I leave my book here.)	Ich lasse mein Auto reparieren. (I have my car repaired.)
brauchen	Ich brauche ein Auto. (I need a car.)	Du brauchst nicht zu kommen. (You don’t need to come.)
werden	Er wird Arzt. (He becomes a doctor.)	Das Haus wird gebaut. (The house is being built.)