Wir gründen einen Verein.

Because Verein is the direct object of the verb gründen, and masculine nouns take einen in the accusative case.

• der Verein = nominative
• einen Verein = accusative

So:

• Wir gründen ein Verein ❌
• Wir gründen einen Verein ✅

This is a very common pattern in German with masculine nouns:

• Ich habe einen Hund.
• Wir kaufen einen Tisch.

Verein is masculine: der Verein.

That is why its forms look like this:

• nominative: der Verein
• accusative: den Verein if definite, or einen Verein if indefinite
• dative: dem Verein
• genitive: des Vereins

For this sentence, the important part is that masculine gender causes ein to change to einen in the accusative.

gründen is a regular verb meaning to found, to establish, or to set up.

It is commonly used with organizations, companies, clubs, associations, parties, and institutions:

• eine Firma gründen = to found a company
• einen Verein gründen = to found an association/club
• eine Schule gründen = to found a school

It is a normal transitive verb, so it takes a direct object in the accusative.

The subject is wir = we, so the verb takes the wir form:

• ich gründe
• du gründest
• er/sie/es gründet
• wir gründen
• ihr gründet
• sie/Sie gründen

So Wir gründen simply means we found / we are founding / we’re setting up, depending on context.

German main clauses usually follow the verb-second rule (V2). That means the finite verb comes in the second position.

In this sentence:

• Wir = first element
• gründen = second element
• einen Verein = rest of the sentence

So the structure is:

Subject + verb + object

This is the most basic German word order in a main clause.

It can mean either, depending on context.

German present tense often covers both:

• simple present: we found
• present progressive: we are founding / we’re setting up

German does not usually need a separate form like English are founding. The surrounding context tells you which meaning is intended.

Verein often means an association, club, or society, depending on context.

It is a very common German word for an organized group of people with a shared purpose, such as:

• a sports club
• a cultural association
• a local community organization
• a hobby group

Sometimes club works as a translation, but association can be closer in more formal contexts.

So einen Verein gründen often means starting some kind of organized member group, not just casually forming a social club.

They are capitalized for different reasons:

• Wir is capitalized because it is the first word in the sentence.
• Verein is capitalized because all German nouns are capitalized.

This is an important German spelling rule:

• der Verein
• die Schule
• das Haus

Verbs like gründen are not capitalized unless they begin the sentence.

No. gründen is not separable.

That means it stays as one word and does not split apart in normal sentence patterns.

Compare:

• non-separable: Wir gründen einen Verein.
• separable example: Wir gründen das Projekt mit. ❌ not the same kind of verb

So you do not get something like Wir gründen ... auf here. It remains simply gründen.

Yes, but it means something different.

• Wir gründen einen Verein = We are founding an association / a club.
• Wir gründen den Verein = We are founding the association / the club.

So:

• einen = indefinite, not previously identified
• den = definite, a specific one already known from context

Both are grammatically correct, but they express different information.

Yes. German word order is flexible, but the finite verb still normally stays in second position in a main clause.

For example, you could say:

• Einen Verein gründen wir.

This is grammatically possible, but it sounds marked or contrastive, as if emphasizing a club.

The most neutral version is:

• Wir gründen einen Verein.

So for beginners, subject + verb + object is the safest default.

A rough pronunciation guide:

• gründen ≈ GRUUN-den, but with ü, which is not the same as English oo
• Verein ≈ fer-EIN

A few key points:

• V in Verein is pronounced like f
• ei in Verein sounds like English eye
• ü in gründen is a front rounded vowel; English does not have an exact equivalent

If you want a rough learner-friendly version, you might think:

• gründen ≈ GRUEN-den
• Verein ≈ fer-EIN

Yes, wir simply means we, and it can be used in any register: casual, neutral, or formal.

For example:

• friends: Wir gründen einen Verein.
• official statement: Wir gründen einen Verein zur Förderung der Kultur.

So there is nothing especially informal or formal about wir by itself. The rest of the wording determines the tone.

The sentence follows a very common German pattern:

Subject + finite verb + accusative object

Breaking it down:

• Wir = subject
• gründen = finite verb
• einen Verein = accusative object

This is one of the most useful core sentence patterns in German, and many beginner sentences work the same way:

• Wir kaufen ein Auto.
• Ich lese ein Buch.
• Sie besucht einen Freund.

So this sentence is a good model for basic German clause structure.