Possessive determiners are the little words that say whose something is — my car, your house, their children. Swedish has two things to learn here that English doesn't make you think about. First, some possessives change shape to agree with the thing possessed (gender and number), while others are frozen. Second — and this is the rule English habits sabotage relentlessly — the noun after any possessive stays in its bare form: min bil, never min bilen. This page sorts the possessives into the two groups and nails down the bare-noun rule.
Two groups: the agreeing ones and the frozen ones
The possessives split cleanly in two. One group agrees with the possessed noun — it has three forms (common / neuter / plural). The other group is invariable — one shape for everything.
The agreeing group: min, din, sin, vår. Each has a common-gender form, a neuter form in -tt, and a plural in -a:
| Meaning | common (en) | neuter (ett) | plural |
|---|---|---|---|
| my | min | mitt | mina |
| your (sg.) | din | ditt | dina |
| his/her/their own (reflexive) | sin | sitt | sina |
| our | vår | vårt | våra |
The frozen group: hans, hennes, dess, er, deras. These never change, no matter the gender or number of the noun:
| Meaning | all genders & numbers |
|---|---|
| his | hans |
| her | hennes |
| its (of a thing/animal) | dess |
| your (pl./formal) | er (also ert / era — see note below) |
| their | deras |
The key thing to remember about agreement is what it agrees with: the possessive matches the possessed object, not the possessor. Min in min bil is feminine-looking min because bil is common gender — it has nothing to do with whether the speaker is a man or a woman. English never does this; my is my regardless. So you choose the possessive's form by asking "what gender and number is the thing owned?"
Det här är min bil, mitt hus och mina barn.
This is my car, my house and my children. min (en bil), mitt (ett hus), mina (plural barn) — all agreeing with the thing owned.
Var har du ditt körkort? Jag hittar inte mitt.
Where do you keep your driving licence? I can't find mine. 'ditt'/'mitt' because 'körkort' is neuter.
Vår lägenhet är liten, men våra grannar är trevliga.
Our flat is small, but our neighbours are nice. 'vår' (en lägenhet) vs 'våra' (plural grannar).
Now the frozen ones — notice that hans, hennes, deras keep the exact same shape across all three columns:
Hans bil, hans hus och hans barn står alla i hans namn.
His car, his house and his children are all in his name. 'hans' never changes — common, neuter, plural, identical.
Hennes idé och deras pengar gjorde projektet möjligt.
Her idea and their money made the project possible. 'hennes' and 'deras' are invariable.
A small correction to the frozen list: er ("your," plural or polite) does in fact inflect — er (common), ert (neuter), era (plural) — so it really belongs with the agreeing group. It is listed above only because beginners often meet er first as a single word. Treat it like vår: er bil, ert hus, era barn.
Är det här er bil, ert hus eller era cyklar?
Is this your car, your house or your bikes? er/ert/era agree just like vår/vårt/våra.
The rule English keeps breaking: the noun goes bare
This is the high-value rule of the page. After every possessive — agreeing or frozen — the noun is in its bare, indefinite form. No definite suffix, no preposed article. So it is min bil ("my car"), never min bilen; hans hus ("his house"), never hans huset.
Min bil, inte min bilen.
'My car' is 'min bil' — the bare noun. 'min bilen' does not exist.
Hennes nycklar ligger på bordet.
Her keys are on the table. 'hennes nycklar' — bare plural, no '-na'.
Har du sett mitt paraply?
Have you seen my umbrella? 'mitt paraply' — bare neuter noun.
Why is this worth flagging so hard? Because A1 learners have just spent weeks drilling that "the car" is bilen — definiteness as a suffix. A possessive is logically definite (it is your specific car), so the instinct is to keep the suffix: min bilen. But Swedish treats the possessive itself as doing the "definite" work, and so it strips the noun back to bare form. The possessive and the suffix are rivals, not partners — you get one or the other, and after a possessive you get the possessive.
With an adjective: possessive + -a adjective + bare noun
Putting it together: when a possessed noun carries an adjective, the adjective takes its definite -a form (the same -a you saw in double definiteness), but the noun stays bare and there is no front den/det/de:
Min nya bil är röd.
My new car is red. min + nya (definite -a) + bare 'bil'.
Vårt gamla hus såldes förra året.
Our old house was sold last year. vårt + gamla + bare 'hus'.
Hans bästa vänner kommer i kväll.
His best friends are coming tonight. hans + bästa + bare 'vänner'.
A preview: sin vs hans/hennes
One thing you will eventually need is the difference between sin/sitt/sina and hans/hennes/deras for third-person possessors. The short version: sin is reflexive — it points back to the subject of the same clause (Han tvättar sin bil = he washes his own car), while hans points to someone else (Han tvättar hans bil = he washes someone else's car). English uses "his" for both, so this is a genuine new distinction. It is subtle enough to deserve its own page — see Sin vs hans/hennes — but it is worth knowing now that sin exists and is not just a stylistic variant of hans.
Hon hämtar sin dotter, inte hennes dotter.
She picks up her (own) daughter, not her (someone else's) daughter. 'sin' = own; 'hennes' = another woman's.
Common Mistakes
❌ min bilen / hans huset
Incorrect — the noun after a possessive is BARE. No definite suffix.
✅ min bil / hans hus
my car / his house — bare nouns.
❌ min hus / mitt bil
Incorrect — wrong agreement. 'hus' is neuter (mitt hus); 'bil' is common (min bil).
✅ mitt hus / min bil
my house / my car — the possessive agrees with the owned noun.
❌ hanss / hennest / derasa (trying to inflect the frozen ones)
Incorrect — hans, hennes, deras never change form.
✅ hans bil, hans hus, hans barn
his car, his house, his children — one frozen shape for all.
❌ den min bil / min stora bilen
Incorrect — a possessive cancels both the front article and the suffix; the noun stays bare.
✅ min bil / min stora bil
my car / my big car — possessive + (adjective -a) + bare noun.
❌ mit hus / dit körkort (single t)
Incorrect — the neuter forms double the t: mitt, ditt, sitt, ert, vårt.
✅ mitt hus / ditt körkort
my house / your licence — double-t neuter forms.
Key Takeaways
- Possessives split into an agreeing group — min/mitt/mina, din/ditt/dina, sin/sitt/sina, vår/vårt/våra (and er/ert/era) — and a frozen group — hans, hennes, dess, deras.
- Agreement matches the possessed noun's gender and number, not the owner: min bil, mitt hus, mina barn.
- After any possessive the noun is bare — min bil, never min bilen: the possessive does the definite work, so the suffix and front article disappear.
- With an adjective: possessive + adjective in -a + bare noun (min nya bil) — no double definiteness.
- The neuter forms have double t: mitt, ditt, sitt, vårt, ert.
- sin (own, reflexive) is distinct from hans/hennes (someone else's) — preview only; see the dedicated page.
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- Possessive Pronouns (min, din, sin)A1 — Swedish possessives split into an agreeing group (min/mitt/mina, din, sin, vår, er) that changes to match the thing OWNED — like Romance languages — and a frozen group (hans, hennes, dess, deras) that never changes. They work both before a noun (min bil) and standing alone (Bilen är min). No apostrophe, ever.
- sin/sitt/sina vs hans/hennes/derasB1 — The decision procedure for Swedish's reflexive possessive. Use sin/sitt/sina ('one's own') when the owner is the third-person SUBJECT of the SAME clause; use hans/hennes/deras for everyone and everything else. 'Han tvättar sin bil' means he washes his OWN car; 'Han tvättar hans bil' means he washes some other man's car — a distinction English can't make in a single word. The hard part is embedded clauses, where 'sin' points to the nearest subject.
- The Genitive -sA1 — Swedish forms the possessive by adding a plain -s to the noun — Annas bil, pojkens cykel, barnens rum — with NO apostrophe (unlike English: never *Anna's). The -s attaches to any form (singular, plural, definite), the genitive replaces the article so the phrase is automatically definite, and a noun already ending in -s/-x/-z adds nothing extra (Lars bil).
- The Definite (Weak) Declension (-a)A2 — The adjective form used in definite phrases — almost always -a regardless of gender and number (den stora bilen, det stora huset, de stora bilarna), with an optional -e for a known male referent (den unge mannen).