German Relative Clauses: How to Form Relative Clauses in German Grammar

German relative clauses can feel like a puzzle when you start to learn German, but once you understand the pattern, they become second nature. The key is knowing which relative pronoun to use based on the gender, case, and number of the noun you're referring back to. This guide breaks down everything you need to form relative clauses in German, from choosing the right pronoun to getting the verb position correct. Let's jump in.

What is a relative clause in German

A relative clause gives you extra information about a noun in the main clause. Think of it as a way to add detail without starting a completely new sentence.

Here's a simple example:

The relative clause here is "der dort steht." It tells you which man we're talking about. Without it, you'd just have "Der Mann ist mein Lehrer," which works fine but gives you less context.

In German, relative clauses have the following rules:

German relative pronouns and the der, die, das system

The relative pronoun you choose depends on three things: the gender and number of the noun you're referring to, and the case that pronoun needs within the relative clause.

Most of the time, German relative pronouns look exactly like the definite article (der, die, das). Here's the full table:

Masculine:

Feminine:

Neuter:

Plural (all genders):

The genitive and dative plural forms (dessen, deren, denen) are the ones that differ from regular definite articles. Everything else matches what you already know.

Here's the thing: the gender and number come from the noun in the main clause, but the case comes from the role the pronoun plays in the relative clause. You need to figure out both pieces of information separately.

Understanding cases in relative clauses

This is where learners get confused, so let's break it down step by step.

The case of your relative pronoun depends on what job it's doing in the relative clause.

Nominative case

Let's look at nominative first. When the relative pronoun is the subject of the relative clause, you use the nominative case.

Here, "die" is nominative because it's the subject of "spricht" within the relative clause. The woman is doing the speaking.

Accusative case

For accusative, the relative pronoun acts as the direct object within the clause.

The pronoun "den" is accusative because it's the object of "gesehen habe." I saw what? The film.

Dative case

Dative shows up when the relative pronoun is an indirect object or follows certain verbs and prepositions that require dative.

The verb "helfen" takes a dative object, so we use "dem" here.

Genitive case

Genitive relative pronouns (dessen, deren) show possession or relationship.

The book belongs to the student, so we use the genitive "dessen."

Relative clauses in German with prepositions

When a preposition appears in your relative clause, the case of the relative pronoun depends on that preposition. Each German preposition governs a specific case (or sometimes two cases, depending on context).

Let's say you want to say:

The preposition "in" requires dative when indicating location, so "der" is the dative feminine form. The noun "Stadt" is feminine, and we need dative because of the preposition.

Another example with accusative:

The preposition "über" takes accusative, and "Thema" is neuter, so we use "das" in the accusative case (which looks the same as nominative for neuter nouns).

Sometimes the preposition can move to the front of the relative pronoun, or it can stay where it would naturally appear in the sentence. German is pretty flexible here, though putting it at the front sounds more formal.

You could technically say "Der Freund, dem ich mit ins Kino gehe..." but that sounds awkward. Keep the preposition with the relative pronoun at the start of the clause.

Word order and verb placement in German grammar

This is crucial: in a relative clause, the conjugated verb always goes to the end. Always.

In a normal German main clause, the verb is in second position: "Ich sehe den Mann." But in a relative clause, it moves: "...der den Mann sieht."

If you have a separable verb, it stays together at the end: "Der Zug, der um 8 Uhr ankommt..." (The train that arrives at 8 o'clock...)

With modal verbs or perfect tense, you get a verb cluster at the end. The conjugated verb (the modal or auxiliary) comes last.

This verb-final position is the same rule that applies to subordinate clauses in German generally. Relative clauses are just one type of subordinate clause, so they follow the same pattern.

Types of German relative clauses and their functions

There are actually several ways to categorize relative clauses, though the formation rules stay the same.

In German, both types use the same structure and punctuation, unlike English where you might use "that" versus "which."

You can also have relative clauses referring to entire previous statements. For these, you use "was" instead of der/die/das. "Er hat die Prüfung bestanden, was mich sehr gefreut hat." (He passed the exam, which made me very happy.) The "was" refers to the whole fact that he passed.

Common mistakes to watch out for

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Your next steps with relative pronouns in German

Relative clauses are one of those grammar points that seem complicated on paper but become intuitive with practice. The key is understanding the logic and consuming media extensively until you have seen how native speakers use them hundreds of times. Once you internalize the rules, you don't need to think about them to put them to use.

Practice. That’s the only way to fluency.📚