Genitive with -s in Swedish

Overview

Swedish expresses possession in a beautifully simple way: just add -s to the owner. There is no apostrophe, no special case endings, and no distinction between masculine, feminine, or neuter — the rule is the same for everyone and everything. Annas bok (Anna's book), pojkens hund (the boy's dog), Sveriges huvudstad (Sweden's capital) — the pattern is always the same.

At the A2 level, the genitive is essential for talking about people's belongings, relationships, and characteristics. The Swedish genitive is simpler than in many other languages, making it an encouraging grammar point to learn.

How It Works

The Basic Rule

Add -s directly to the owner (the possessor), with no apostrophe:

Owner	+ s	Possessed	Full phrase	English
Anna	Annas	bok	Annas bok	Anna's book
pojken	pojkens	hund	pojkens hund	the boy's dog
Sverige	Sveriges	huvudstad	Sveriges huvudstad	Sweden's capital

Names Ending in -s, -x, or -z

When a name already ends in -s, -x, or -z, you can either add -s or use just the -s that is already there (sometimes marked with a colon in informal writing):

Name	Genitive	Example
Jonas	Jonas / Jonas'	Jonas bil (Jonas's car)
Max	Max / Max'	Max rum (Max's room)
Lars	Lars	Lars fru (Lars's wife)

In modern Swedish, the most common solution is simply to skip the extra -s: Lars fru, Jonas bil.

Genitive with Definite Nouns

The noun in definite form (with the suffix article) takes -s:

Noun	Definite	Genitive	English
hund	hunden	hundens	the dog's
bil	bilen	bilens	the car's
barn	barnet	barnets	the child's
hus	huset	husets	the house's

Genitive of Noun Phrases

The -s attaches to the last word of the possessor phrase, even if it is not the main noun:

• Min brors fru (My brother's wife) — -s on bror
• Mannen i hattens namn — awkward; prefer: Namnet på mannen i hatten (The name of the man in the hat)

For longer phrases, Swedish often uses preposition phrases instead:

Genitive	Alternative with preposition
stadens invånare	invånarna i staden
bokens författare	författaren av/till boken

The Possessed Noun's Form

When the possessor has a genitive -s, the possessed noun takes indefinite form (no article suffix):

• Annas bok (not Annas boken)
• pojkens hund (not pojkens hunden)

Examples in Context

Swedish	English	Note
Annas katt är vit.	Anna's cat is white.	Name + s
Barnets leksaker ligger på golvet.	The child's toys are on the floor.	Definite noun + s
Sveriges flagga är blå och gul.	Sweden's flag is blue and yellow.	Country name + s
Min mammas syster bor i Malmö.	My mum's sister lives in Malmö.	Possessive + noun + s
Hundens mat är slut.	The dog's food is finished.	En-word, definite + s
Husets tak behöver repareras.	The house's roof needs repair.	Ett-word, definite + s
Lärarens namn är Erik.	The teacher's name is Erik.	Person noun, definite + s
Stadens centrum är vackert.	The city's centre is beautiful.	Definite noun + s
Lars nya bil är röd.	Lars's new car is red.	Name ending in -s
Böckernas pris har ökat.	The books' price has increased.	Plural definite + s

Common Mistakes

Using an apostrophe

• Wrong: Anna's bok
• Right: Annas bok
• Why: Swedish does not use apostrophes for the genitive. This is one of the clearest differences from English — just add -s directly.

Putting the possessed noun in definite form

• Wrong: Annas boken
• Right: Annas bok
• Why: When a genitive possessor stands before the noun, the possessed noun takes indefinite form. The genitive already makes it specific.

Adding -s to the wrong word in a phrase

• Wrong: Mins bror fru
• Right: Min brors fru
• Why: The -s goes on the possessor noun (bror), not on other words in the phrase.

Overusing the genitive for long phrases

• Wrong: Mannen som bor på tredje våningens bil
• Right: Bilen som tillhör mannen på tredje våningen
• Why: Long possessor phrases become awkward with -s. Use a preposition construction instead for clarity.

Usage Notes

The -s genitive is preferred for people and proper nouns. For objects and abstract concepts, Swedish often uses preposition phrases with av (of), på (on/of), or till (to/of) instead:

• taket på huset (the roof of the house) — more natural than husets tak in casual speech
• priset på boken (the price of the book)

Both forms are grammatically correct, but the prepositional version often sounds more natural in everyday conversation for non-human possessors.

Practice Tips

• Describe your family using genitives: min mammas namn, min pappas jobb, min systers skola. This gives you natural practice with a topic you know well.
• When you see possessive constructions in Swedish texts, note whether they use -s or a prepositional phrase. This helps you develop a feel for which style is preferred in different contexts.
• Practice aloud with definite nouns: hunden → hundens, bilen → bilens, barnet → barnets. The pattern is consistent and satisfying to drill.

Related Concepts

• Prerequisite: Noun Gender (En/Ett) — Knowing whether a noun is an en-word or ett-word helps you form the definite form before adding -s.
• Next steps: Possessive Pronouns — Learn min/mitt/mina, din/ditt/dina, etc. for another way of expressing possession.