After the genuine guesswork of the -ar / -er split, class 4 is a relief: it is completely predictable. The rule needs no exceptions and no word-by-word memorising. If a noun is an ett-word ending in a vowel, its plural is formed by adding a single -n — and that is the whole story. Ett äpple ("apple") becomes äpplen; ett bi ("bee") becomes bin. This page shows why the prediction is watertight, walks the four-form paradigm, and gives you the everyday vocabulary that lives here. The single most useful thing to take away: this class is defined by two facts you already know about a noun — its gender and its final sound — so once you've learned the word as ett äpple, the plural comes for free.
The rule: ett-word + final vowel → add -n
The trigger has two conditions, and both must hold:
- The noun is a neuter (ett) word — see Grammatical Gender: en and ett.
- It ends in a vowel in the dictionary form.
When both are true, the indefinite plural is just the bare stem + -n. Nothing is dropped; the final vowel stays and the -n clips onto it:
ett äpple → äpplen · ett bi → bin · ett konto → konton · ett ställe → ställen
Because the noun already ends in a vowel, a single consonant -n is all that's needed to mark the plural audibly. This is the same instinct you saw in the definite singular, where vowel-final nouns took just -n or -t rather than the full -en / -et.
Det ligger tre äpplen och två päron i skålen.
There are three apples and two pears in the bowl. ett äpple → äpplen — add -n to the vowel-final ett-word.
Det surrade massor av bin runt fruktträden.
Loads of bees were buzzing around the fruit trees. ett bi → bin.
Jag har två konton i samma bank.
I have two accounts at the same bank. ett konto → konton — the -o stays, just add -n.
Tie it to gender: why no other class competes
Here is the insight that makes class 4 effortless, and which most courses leave implicit. The five declensions sort themselves largely by gender and final sound, and the vowel-final ett-words sit in a slot all their own:
| Gender + ending | Class | Plural | Example |
|---|---|---|---|
| en-word in -a | 1 | -or | en flicka → flickor |
| en-word (other) | 2 / 3 | -ar / -er | en bil → bilar; en sak → saker |
| ett-word ending in a vowel | 4 | -n | ett äpple → äpplen |
| ett-word ending in a consonant | 5 | — (no ending) | ett hus → hus |
Notice the bottom two rows: both are ett-words, and the final sound alone decides the plural — vowel means -n (class 4), consonant means no ending (class 5, see the zero plural). So for any neuter noun, you don't even need to know the word; you just look at its last letter. That clean split between class 4 and class 5 is one of the few genuinely algorithmic corners of Swedish noun morphology.
Vi besökte flera vackra ställen längs kusten.
We visited several beautiful places along the coast. ett ställe → ställen (vowel → -n).
Det finns inga bra kaféer i den här delen av stan.
There are no good cafés in this part of town. ett kafé → kaféer? No — see below: a STRESSED final vowel can pull a loan into class 3.
The full paradigm: definite plural -na
A class 4 noun runs across the four forms cleanly. The definite singular adds -t (vowel-final, so just the consonant — äpple → äpplet), the indefinite plural adds -n, and the definite plural adds -na on top of the plural stem to give -ena in the -e words (äpplen → äpplena) or -na elsewhere:
| Indef. sing. | Def. sing. | Indef. plural | Def. plural | Meaning |
|---|---|---|---|---|
| ett äpple | äpplet | äpplen | äpplena | apple |
| ett bi | biet | bin | bina | bee |
| ett konto | kontot | konton | kontona | account |
| ett ställe | stället | ställen | ställena | place |
| ett meddelande | meddelandet | meddelanden | meddelandena | message |
| ett frö | fröet | frön | fröna | seed |
The rhythm to internalise: the vowel-final stem is constant across all four forms, and you tack on -t (definite singular), -n (plural), or -na (definite plural). Note ett frö → frön → fröna: the ö is part of the stem and rides through every form unchanged — there is no umlaut here.
Plantera fröna en bit ifrån varandra.
Plant the seeds a little apart from each other. frö → frön → fröna.
Jag har inte läst alla meddelandena än.
I haven't read all the messages yet. meddelande → meddelanden → meddelandena.
Äpplena från vårt träd är söta i år.
The apples from our tree are sweet this year. Definite plural äpplena — the -e- of the stem and the -na ending sit side by side.
A caveat: stressed final vowels can pull loans into class 3
There is one boundary to respect. The rule says vowel-final ett-word → -n, and that holds for unstressed final vowels (äpple, konto, ställe) and for the short native words in a stressed vowel (bi → bin, frö → frön, knä → knän). But a number of borrowed ett-words ending in a stressed vowel behave like the loanwords of class 3 and take -er instead: ett parti → partier, ett geni → genier ("genius"), ett kafé → kaféer. The native monosyllables (bi, frö, knä, sto) stay in class 4; the polysyllabic stress-final loans drift to class 3. When in doubt with a borrowed word, check it.
Det öppnade två nya kaféer på torget.
Two new cafés opened on the square. ett kafé → kaféer — a stress-final loan, class 3, not *kafén.
Orthography: the vowel stays, even å/ä/ö
There is essentially nothing to spell wrong here, which is part of the charm. The -n attaches straight to the final vowel and no letter is dropped or changed. A stem vowel that happens to be å, ä, or ö is a full letter and stays put: ett frö → frön, ett knä → knän ("knee"), ett sto → ston ("mare"). There is no umlaut and no vowel deletion anywhere in class 4.
Hon skrapade upp båda knäna när hon föll.
She scraped both knees when she fell. knä → knän → knäna; the ä is untouched.
Common Mistakes
❌ ett äpple → äpplor / äpplar
Incorrect — those are en-word endings (-or, -ar). This is a vowel-final ett-word: -n.
✅ ett äpple → äpplen
an apple → apples — ett-word + vowel = -n.
❌ tre konton → 'three accounts' written as 'three kontos'
Incorrect — no English -s. Add -n: konton.
✅ tre konton
three accounts — konto → konton.
❌ ett bi → bier / biar
Incorrect — a short native vowel-final ett-word just adds -n.
✅ ett bi → bin
a bee → bees — bi → bin.
❌ äpplen for 'the apples'
Incorrect — that's the indefinite plural; the definite plural adds -na: äpplena.
✅ äpplena
the apples — plural -n plus definite -a.
❌ Treating 'ett hus' like this class
Incorrect — 'hus' ends in a CONSONANT, so it's class 5 with no ending: ett hus → hus, not *husn.
✅ ett hus → hus
a house → houses — consonant-final ett-words take no ending.
Key Takeaways
- Class 4 is the -n plural: an ett-word ending in a vowel simply adds -n (äpple → äpplen, bi → bin, konto → konton).
- It is fully predictable from two facts you already store about the noun — gender (ett) + final sound (vowel) — so the plural is free once you know the word.
- Full paradigm: ett äpple / äpplet / äpplen / äpplena — the definite plural is -na.
- The split with class 5 is purely the final sound: ett-word + vowel → -n; ett-word + consonant → no ending.
- Watch for stress-final loans (parti → partier, kafé → kaféer), which join class 3 instead. The vowel — including å/ä/ö — never changes.
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Start learning Swedish→Related Topics
- The Five Plural DeclensionsA2 — Swedish builds plurals through five declension classes — -or, -ar, -er, -n, and a zero ending — not the English -s. This overview names all five, gives a model noun for each, and lays out the prediction rules competitors omit: gender plus the word's final sound forecasts the class about 80% of the time, so the system is far less random than it first looks.
- Grammatical Gender: en and ettA1 — Swedish's two-gender system — common-gender en-words (~75%) and neuter ett-words (~25%) — and the honest truth that gender is mostly arbitrary and learned per word. Plus the genuine tendencies that cut the guesswork (unstressed -a is almost always en), and why gender matters: it drives the article, the definite ending, and the -t neuter form on adjectives.
- Plural Class 5: No EndingA2 — The fifth Swedish plural declension: the zero plural, where the indefinite singular and plural look identical (ett hus → två hus, ett barn → barn). It covers most consonant-final ett-words and the large, predictable family of -are agent nouns (en lärare → lärare). Definite plural -en for ett-words (husen) and -na for the -are nouns (lärarna).
- The Definite PluralA2 — How Swedish says 'the cars / the girls / the houses': you take the indefinite plural and add a second definite suffix — -orna (flickorna), -arna (bilarna), -erna (sakerna), -na (äpplena), and -en for the zero-plural ett-words (husen). The rule of thumb: add -na to vowel-ending plurals, -en to consonant-ending zero plurals. Plus the dangerous look-alike: husen ('the houses') vs the -en that elsewhere marks the definite SINGULAR.