Most Swedish verbs end their infinitive in an unstressed -a (tala, köpa, arbeta). Group 3 is the odd little family that doesn't: its infinitive ends in a stressed vowel that is something other than that final -a — bo, tro, sy, må, klä, ske. There are only a few dozen of them, but several are extremely common, and the good news is that their present tense is the simplest in the whole language. You take the infinitive and add -r. That's it.
The rule: infinitive + r
Because the infinitive already ends in a vowel, there is nothing to strip and nothing to adjust. You just glue -r onto the end:
| Infinitive | Present | Meaning |
|---|---|---|
| bo | bor | live / reside |
| tro | tror | believe / think |
| sy | syr | sew |
| klä | klär | dress / suit |
| må | mår | feel (be in a state of health) |
| ro | ror | row |
| fly | flyr | flee |
| ske | sker | happen / occur |
Notice that the stressed vowel never changes — bo keeps its o (bor), må keeps its å (mår), klä keeps its ä (klär). There is no vowel shift, no doubling, no dropped letter. Compare this with Group 1 verbs like tala, where the present is talar (stem tal- plus -ar): there the -a of the infinitive is part of the ending machinery. In Group 3 there simply is no -a to manage, so the only thing that happens is the -r of the present.
Jag bor i Sverige men min familj bor i Norge.
I live in Sweden but my family lives in Norway. bo → bor — infinitive plus r, the vowel o stays put.
Jag tror att det blir regn i morgon.
I think it'll rain tomorrow. tror is the everyday word for 'think / believe' in the sense of opinion or guess.
Den där tröjan klär dig verkligen.
That sweater really suits you. klä → klär — the ä is kept; 'klä' also means 'to dress' someone.
These verbs are almost all monosyllabic
Group 3 verbs are short by definition — most are a single syllable (bo, tro, sy, ro, fly, må, klä), and the handful of two-syllable ones (ske, bero "depend") still end in a stressed vowel. This shortness is exactly why they form a separate group: a verb like tala can lean on its full -a infinitive, but bo has nothing to lean on, so the language treats it specially. When you meet a brand-new verb ending in a stressed vowel — and you will, because the class is closed and recognisable — you can conjugate the present on sight: add -r.
Vi ror ut till ön varje sommar.
We row out to the island every summer. ro → ror, a typical short Group 3 verb.
Hon syr alla sina egna kläder.
She sews all her own clothes. sy → syr — the y is the stressed vowel and stays.
må and the mystery of "Hur mår du?"
Here is the payoff that demystifies a phrase nearly every learner memorises blindly. The standard "How are you?" in Swedish is Hur mår du? — and mår is nothing exotic. It is simply the present of må, the Group 3 verb meaning "to feel / to be in a state of health." Literally, Hur mår du? is "How do you feel / How are you faring?"
Once you see that mår is må + -r, the whole family of answers falls into place, because they are all just the same verb with an adverb:
| Swedish | Literal | Natural English |
|---|---|---|
| Hur mår du? | How feel you? | How are you? |
| Jag mår bra. | I feel good. | I'm fine / well. |
| Jag mår inte så bra. | I feel not so good. | I'm not feeling great. |
| Hon mår bättre nu. | She feels better now. | She's feeling better now. |
Hur mår du? — Tack, jag mår bra. Och du?
How are you? — Thanks, I'm fine. And you? mår is just må + r, the same verb in question and answer.
Han mår inte så bra idag, han stannar hemma.
He's not feeling well today, he's staying home. mår covers physical and emotional well-being alike.
Note that må is about a state of health or well-being, not about an opinion or a sensation in the moment. For "I feel cold" you'd use frysa (jag fryser), and for "I feel that..." (an opinion) you'd use tycka or känna. Må is specifically the "how are you doing" verb — which is why it powers the greeting.
High-frequency members worth knowing
You don't need to memorise the whole class, but these earn their keep in everyday Swedish:
- bo (bor) — to live / reside. Among the most-used verbs in the language: Var bor du? "Where do you live?"
- tro (tror) — to believe / think (an opinion or guess): Jag tror det. "I think so."
- må (mår) — to feel / fare. Powers Hur mår du?
- klä (klär) — to dress, or to suit/flatter: Det klär dig. "It suits you."
- sy (syr) — to sew.
- ro (ror) — to row.
- fly (flyr) — to flee.
- ske (sker) — to happen / occur (slightly formal; everyday speech often prefers hända).
Var bor du nuförtiden? — Jag bor kvar i samma lägenhet.
Where do you live these days? — I still live in the same flat. bor is the workhorse of this group.
Common Mistakes
❌ Jag boar i Sverige.
Incorrect — treating bo like a Group 1 verb. There is no -a to keep; the present is just bo + r.
✅ Jag bor i Sverige.
I live in Sweden.
❌ Jag troar att det regnar.
Incorrect — same error with tro. Add only -r to the vowel.
✅ Jag tror att det regnar.
I think it's raining.
❌ Hur måar du? / Hur mor du?
Incorrect — må keeps its å and just takes -r. Don't add -a and don't change the vowel.
✅ Hur mår du?
How are you?
❌ Jag är bra. (as an answer to Hur mår du?)
Incorrect — 'I am good' uses the wrong verb. The natural reply reuses må.
✅ Jag mår bra.
I'm fine / I'm doing well.
❌ Den tröjan kläar dig.
Incorrect — klä keeps its ä and adds only -r: klär.
✅ Den tröjan klär dig.
That sweater suits you.
Key Takeaways
- Group 3 = short verbs whose infinitive ends in a stressed vowel other than unstressed -a (bo, tro, sy, må, klä, ro, fly, ske).
- The present is the simplest in Swedish: infinitive + -r, with no vowel change (bo → bor, må → mår, klä → klär).
- The big trap for English speakers is treating them as Group 1 and inserting an -a (boar, troar) — there is no -a to keep.
- må ("feel / fare") is a Group 3 verb, and its present mår is the engine of the everyday greeting Hur mår du? and its answers (jag mår bra).
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- Present Tense: Group 2 (-er)A2 — Group 2 verbs are consonant-stem -a verbs that form the present by DROPPING the infinitive -a and adding -er (ringa → ringer, köpa → köper, läsa → läser). Stems already ending in -r add just -r or nothing (köra → kör, höra → hör). A built-in catch: the present alone can't tell you whether a Group 2 verb belongs to the -de or -te past subtype, so always record the past tense too.
- Past Tense: Group 3 (-dde)A2 — Group 3 short verbs end in a stressed vowel (bo, tro, sy, klä) and form the preteritum by adding a doubled -dde (bo → bodde, tro → trodde, sy → sydde, klä → klädde), with a supine in -tt (bott, trott). The double consonant isn't arbitrary: it's the Swedish length system at work — a short stressed vowel must be followed by a double consonant in spelling.
- The Four Conjugation GroupsA2 — Swedish verbs sort into four conjugation classes, identified not by the present tense but by the PAST (preteritum) and supine: Group 1 (talar/talade/talat), Group 2 (ringer/ringde/ringt, köper/köpte/köpt), Group 3 (bor/bodde/bott), and Group 4, the strong verbs (skriver/skrev/skrivit) that change their vowel. Group 1 is so dominant and regular that every new and borrowed verb joins it — so treat it as the default and memorise only the closed list of strong verbs.