Virke | Danish Grammar

Virke does two jobs that English keeps strictly apart. First, it means "to work / function" — but only of things: machines, medicine, plans, batteries. Second, it means "to seem / appear" — the impression a person or situation gives off. What it never means is a person doing labour; that is arbejde. Once you see virke as the verb of "functioning and seeming," the two senses feel like one idea: something is producing an effect on the world or on your perception.

Principal parts

Infinitive	Present	Past	Past participle	Imperative
(at) virke	virker	virkede	virket	virk!

Virke is a regular weak verb of the -ede class: past virkede, participle virket. The imperative virk! is vanishingly rare — you do not normally command something to function — so in practice you will only ever meet the other four forms.

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Danish verbs never change for person or number. Tv'et virker, medicinen virker, de virker — the present is always virker, whether the subject is one machine or many people.

Sense 1: to work / function (of things)

When a device, medicine, or arrangement does its job, it virker. This is the verb on every Danish "out of order" sign and every conversation about whether the wifi is up.

Tv'et virker ikke — der er bare en sort skærm.

The TV isn't working — there's just a black screen.

Medicinen virker hurtigt; jeg har det allerede bedre.

The medicine works fast; I already feel better.

Min gamle plan virkede ikke, så jeg prøver noget nyt.

My old plan didn't work, so I'm trying something new.

Sense 2: to seem / appear (of impressions)

When you describe the impression someone or something gives, virke takes an adjective (or som om + clause). This is "to seem" or "to come across as."

Han virker flink, men jeg kender ham ikke endnu.

He seems nice, but I don't know him yet.

Det virker, som om det snart begynder at regne.

It looks as if it's going to start raining soon.

Hun virkede nervøs til samtalen.

She seemed nervous at the interview.

The link between the two senses is the verb's literal core: virke comes from virkning ("effect"). A machine that virker produces its intended effect; a person who virker flink produces the effect of niceness on you. Same root, two everyday uses.

Present perfect

The perfect uses har + virket (the default auxiliary). It is most common in the "function" sense — reporting whether something has or hasn't been working. Danish has no separate continuous, so har virket covers both "has worked" and "has been working."

Internettet har ikke virket hele morgenen.

The internet hasn't worked all morning.

Behandlingen har virket bedre, end vi turde håbe.

The treatment has worked better than we dared hope.

In the past tense, the same form serves both senses: Aircondition virkede ikke ("the air conditioning wasn't working", function) and Han virkede træt ("he seemed tired", impression). Only the subject — a thing versus a person — tells you which meaning is in play.

The key contrast: virke vs arbejde

English uses one word, "work," for both people doing a job and machines functioning. Danish splits them cleanly:

Verb	Subject	Meaning
arbejde	a person (or animal)	to do labour / have a job
virke	a thing / machine / medicine	to function / produce its effect

A washing machine does not arbejde; it virker (or doesn't). A person does not virke in the sense of holding a job; they arbejder. This is one of the most reliable English-speaker errors in Danish — maskinen arbejder ikke sounds as odd to a Dane as "the machine labours not" does to you.

Jeg arbejder på et kontor i København.

I work in an office in Copenhagen. (a person → arbejde)

Vaskemaskinen virker ikke i dag.

The washing machine isn't working today. (a thing → virke)

For the "person doing a job" verb, see arbejde.

There is a third verb in this orbit worth knowing: fungere ("to function"), a more formal synonym of the function-sense of virke. Systemet fungerer and systemet virker both mean "the system works," but virke is the everyday choice, while fungere sounds at home in a manual or a report. When in doubt at A2, reach for virke.

Common collocations and fixed expressions

virke efter hensigten — to work as intended
virke som om … — to seem as if …
virke troværdig / overbevisende — to seem credible / convincing
det virker! — it works! (a small triumph everyone needs)
virke på nogen — to have an effect on someone (Kaffen virker ikke på mig længere.)

Bremserne virker ikke efter hensigten — få bilen tjekket.

The brakes aren't working as intended — get the car checked.

A short dialogue

— Virker din computer igen? — Ja, men sælgeren virkede ret usikker, da jeg spurgte hvorfor.

— Is your computer working again? — Yes, but the salesman seemed pretty unsure when I asked why.

Both senses, side by side: virker of the computer (function) and virkede of the salesman (impression). The same verb, two meanings, one short reply.

Common mistakes

❌ Maskinen arbejder ikke.

Wrong — machines don't arbejde; a thing that functions uses virke.

✅ Maskinen virker ikke.

The machine isn't working.

❌ Jeg virker på et hospital.

Wrong — a person doing a job uses arbejde, not virke.

✅ Jeg arbejder på et hospital.

I work at a hospital.

❌ Han ser flink, men jeg er ikke sikker.

Off — for the impression someone gives, use virker; se needs ud (ser flink ud).

✅ Han virker flink, men jeg er ikke sikker.

He seems nice, but I'm not sure.

❌ Pillerne har virkede med det samme.

Wrong — the perfect uses the participle virket, not the past virkede.

✅ Pillerne har virket med det samme.

The pills have worked right away.

Key takeaways

Virke is a regular -ede weak verb: virke / virker / virkede / virket; perfect with har.
Sense 1: to function — of things, machines, medicine, plans (tv'et virker ikke).
Sense 2: to seem / appear — the impression something gives (han virker flink).
Never use virke for a person's job, and never use arbejde for a machine — that split is the headline error English speakers make.

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