Once the basic som relative is solid — see Relative Clauses — there are three advanced cases that separate a confident speaker from a beginner: what happens when a preposition is involved, how to say "whose" (vars), and the special relative vilket that refers back to a whole clause rather than a noun. The last of these is the one English speakers systematically get wrong, because English uses one word — "which" — for two jobs that Swedish keeps strictly apart.
Prepositions in relatives: strand it
When the noun being described is the object of a preposition — the house I live in, the chair I'm sitting on — Swedish leaves the preposition stranded at the end of the relative clause. The relative word is som (or nothing, if it is the object), and the preposition stays put.
Huset som jag bor i är gammalt.
The house (that) I live in is old. The preposition 'i' is stranded at the end of the relative clause.
Stolen som jag sitter på är obekväm.
The chair I'm sitting on is uncomfortable. 'på' stays at the end; the relative leaves a gap.
Den person jag pratade med visste ingenting.
The person I spoke to knew nothing. Object relative with som dropped; 'med' stranded.
This is not slang or a shortcut — stranding is the neutral, preferred Swedish pattern, exactly as it is in questions (Vem bor du med?). See Preposition Stranding for the full picture. The school-taught English worry about "ending a sentence with a preposition" has no force in Swedish; ending the relative with the preposition is precisely right.
The formal alternative: pied-piping with i vilket
Swedish does have a way to keep the preposition together with the relative word, by using vilket/vilken/vilka ("which") after the preposition: huset *i vilket jag bor. But this is *stiff, formal, often legal or literary — a native would rarely say it in conversation. Reach for it only in elevated written register.
Det var ett möte under vilket många viktiga beslut fattades.
It was a meeting during which many important decisions were made. Pied-piped 'under vilket' — formal/written register.
vars: "whose"
To express possession across a relative — "the author whose books ..." — Swedish uses vars. It is invariable (no agreement for gender or number), it comes directly before the possessed noun, and the possessed noun appears in its bare indefinite form (no article, no definite suffix): vars böcker, not vars böckerna.
Författaren vars böcker jag älskar bor i Göteborg.
The author whose books I love lives in Gothenburg. vars + bare noun 'böcker'; vars never changes form.
Mannen vars bil blev stulen anmälde det till polisen.
The man whose car was stolen reported it to the police. vars bil — 'whose' + the possessed noun, no article.
Det är en by vars namn jag aldrig kan komma ihåg.
It's a village whose name I can never remember. vars works for things as well as people.
vars is somewhat formal in flavour — in casual speech Swedes often dodge it by rephrasing (Författaren — hennes böcker älskar jag — bor i Göteborg, or a som ... hans/hennes construction). But vars is correct, compact and entirely standard in writing, and you should be able to produce it. Note the s is part of the word: it is vars, never var in this meaning.
vilket: the relative for a whole clause
Now the construction that English speakers reliably break. So far every relative has described a noun. But sometimes the thing you want to comment on is the entire preceding clause — the whole event or fact. English uses ", which" for this: He arrived late, *which annoyed me* — "which" refers not to any noun but to the fact that he arrived late.
Swedish has a dedicated word for this clause-referring relative: vilket. And here is the trap: som is ungrammatical for a whole-clause antecedent. You cannot stretch som to cover it the way English stretches "which."
Han kom sent, vilket gjorde mig arg.
He arrived late, which made me angry. 'vilket' refers to the WHOLE preceding clause (his arriving late), not to a noun. som would be wrong here.
Det regnade hela helgen, vilket var tråkigt.
It rained all weekend, which was a shame. 'vilket' = 'which', pointing back at the entire fact 'it rained all weekend'.
Hon fick jobbet, vilket vi alla hade hoppats på.
She got the job, which we'd all been hoping for. Clausal antecedent → vilket, always preceded by a comma.
Why vilket specifically (the neuter form)? Because a clause or fact has no gender — and the neuter is Swedish's default "abstract / propositional" gender, the same det you see in det regnar and det är synd att .... A whole proposition is treated as neuter, so the relative that points at it is the neuter vilket. (The forms vilken common-gender and vilka plural exist for noun antecedents in formal pied-piping, but the clause-referring relative is always vilket.)
The contrast that fixes it:
| Antecedent | Relative word | Example |
|---|---|---|
| a noun | som | Han sa en sak som gjorde mig arg. (a thing that ...) |
| a whole clause | vilket | Han kom sent, vilket gjorde mig arg. (..., which ...) |
Read those two aloud. en sak som gjorde mig arg — "a thing that made me angry": som points at the noun sak. Han kom sent, vilket gjorde mig arg — "..., which made me angry": vilket points at the event of his coming late. English collapses both into "which/that"; Swedish keeps them in separate boxes.
Common Mistakes
❌ Huset i som jag bor är gammalt.
Incorrect — don't pied-pipe with som. Strand the preposition: huset som jag bor i.
✅ Huset som jag bor i är gammalt.
The house I live in is old.
❌ Han kom sent, som gjorde mig arg.
Incorrect — the antecedent is the whole clause, not a noun, so it must be 'vilket', not 'som'.
✅ Han kom sent, vilket gjorde mig arg.
He arrived late, which made me angry.
❌ Författaren vars böckerna jag älskar ...
Incorrect — after 'vars' the possessed noun is bare (indefinite), no definite suffix: vars böcker.
✅ Författaren vars böcker jag älskar ...
The author whose books I love ...
❌ Mannen var bil blev stulen ...
Incorrect — 'whose' is 'vars' with an -s; 'var' is a different word ('where' / 'was').
✅ Mannen vars bil blev stulen ...
The man whose car was stolen ...
❌ Det regnade hela helgen vilket var tråkigt.
Incorrect (punctuation) — a clause-referring vilket must be preceded by a comma.
✅ Det regnade hela helgen, vilket var tråkigt.
It rained all weekend, which was a shame.
Key Takeaways
- In relatives, strand the preposition at the end with som (or no relative word): huset som jag bor i. The pied-piped i vilket exists but is formal/literary.
- vars = "whose": invariable, directly before the possessed noun, which stays bare (vars böcker, not vars böckerna). It is the -s form — never var. Somewhat formal but standard.
- vilket is the dedicated relative for a whole-clause antecedent ("..., which ..."): Han kom sent, vilket gjorde mig arg. It is neuter because a proposition is treated as neuter, and it is preceded by a comma.
- som is ungrammatical for a clausal antecedent — the key error English speakers make by over-extending "which." Point at a single noun → som; refer to the whole idea → vilket.
Now practice Swedish
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Start learning Swedish→Related Topics
- Relative ClausesB1 — How to build a relative clause in Swedish: noun + som + a subordinate (BIFF) clause — mannen som bor här. The rule English speakers trip on is that som can be dropped only when it is the OBJECT (boken jag läste), never when it is the SUBJECT (kvinnan som ringde), the reverse of English instinct. Because the clause is subordinate, inte and other adverbs sit BEFORE the verb inside it (boken som jag inte har läst). Plus restrictive vs. non-restrictive (comma) relatives.
- Preposition StrandingB1 — In Swedish questions, relative clauses and topicalisations, the preposition stays at the END of the clause: Vem bor du med? ('Who do you live with?'), mannen som jag pratade med, Den stolen sitter jag bra i. Stranding is the neutral, preferred pattern — the opposite of the prescriptive English advice that warns against ending a sentence with a preposition. Pied-piping (med vem, i vilken) is formal and literary.
- Relative Pronouns (som, vilken, vars)B1 — Swedish gets by with one all-purpose relative word, som — it covers 'who', 'whom', 'which' and 'that' for people and things, as subject or object alike. The catch English speakers miss: som can be dropped when it's the object (boken jag läste) but never when it's the subject (boken som handlar om...), and Swedish strands its prepositions at the end (mannen som jag bor med) far more naturally than English does — while the pied-piping you'd reach for in English (mannen med vilken...) is stiff and bookish here.
- Complex Grammar: OverviewB1 — A map of the advanced sentence-building constructions — relative clauses, conditionals, reported speech, comparison structures, information-packaging devices (clefts, extraposition) and non-finite constructions — and the single liberating idea behind all of them: almost none introduce a new word-order rule. They are recombinations of the V2 and BIFF machinery you already know, plus fronting and embedding. The difficulty is combinatorial, not novel.