Tjene | Danish Grammar

Tjene carries two senses that English splits into different words: to earn (money, a living, interest) and to serve (a purpose, a cause, a country). It is a regular weak verb of the -te / -t class, so its forms are completely predictable. The one trap — and it is a costly one — is the resemblance to fortjene ("to deserve"). Say jeg tjener en pause and you have claimed you earn a break as wages; you meant jeg fortjener en pause, "I deserve a break."

Principal parts

Form	Danish	English
Infinitive	(at) tjene	to earn / to serve
Present	tjener	earn(s) / serve(s)
Past	tjente	earned / served
Past participle	tjent	earned / served
Imperative	tjen!	earn! / serve!

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No agreement, ever. The present is tjener for every subject — jeg tjener, du tjener, han tjener, vi tjener, de tjener — and the past is tjente for all of them. Danish verbs never inflect for person or number, so there is one form per tense and nothing more to learn.

Tjene is a weak verb of the -te / -t type: drop nothing from the stem tjen-, add -te for the past and -t for the participle. Because the stem ends in -n (a voiced consonant), the past takes -te rather than -ede — exactly the same pattern as købe → købte and spise → spiste.

Present: tjener

Subject	Form	Example
jeg	tjener	jeg tjener gode penge
du	tjener	du tjener for lidt
han / hun	tjener	hun tjener til huslejen
vi	tjener	vi tjener et godt formål
de	tjener	de tjener fædrelandet

Hun tjener gode penge som tandlæge.

She earns good money as a dentist.

Hvor meget tjener man egentlig som lærer?

How much do you actually earn as a teacher?

Notice the impersonal man in the second example — Danes use it the way English uses generic "you" ("how much do you earn"), and tjener stays the same single form.

Past: tjente

Jeg tjente mine første penge med en avisrute som barn.

I earned my first money with a paper round as a kid.

Mødet tjente ikke rigtig noget formål.

The meeting didn't really serve any purpose.

Present perfect: har tjent

The perfect uses har plus the participle tjent. Earning and serving are things you do, not changes of your own state or location, so the auxiliary is always har, never er.

Han har tjent mange penge på sin app.

He's made a lot of money from his app.

Den gamle bro har tjent byen i hundrede år.

The old bridge has served the town for a hundred years.

Two senses: 'earn' and 'serve'

Earning: tjene penge

The money sense is everywhere in everyday Danish. The core collocation is tjene penge ("earn / make money"); you also tjene til something (earn enough for it) and tjene på something (profit from it).

Det er svært at tjene penge på musik i dag.

It's hard to make money from music these days.

Vi tjener lige akkurat til at betale regningerne.

We earn just barely enough to pay the bills.

Serving: tjene et formål

The "serve" sense covers serving a purpose, a cause, a country, or a master — more abstract and a touch more formal than the money sense. (neutral / formal)

Reglen tjener et vigtigt formål: at beskytte børnene.

The rule serves an important purpose: to protect the children.

The noun: en tjener ('waiter')

From this verb comes one of the most useful nouns at a restaurant: en tjener, "a waiter / server" (literally "one who serves"). The feminine en tjenerinde is dated; tjener now covers all genders.

Undskyld, tjener — må vi bede om regningen?

Excuse me, waiter — could we have the bill?

Tjene vs fortjene — the insight

This is the pair to lock in. They look like relatives, but they are not interchangeable:

tjene — to earn (as wages, income, profit) or to serve (a purpose). You exchange labour or function for it.
fortjene — to deserve / merit. You are worthy of it, regardless of any payment. (neutral)

The English verb "earn" sits awkwardly across both — we say both "she earns a salary" (tjene) and "she's earned a rest" (fortjene). Danish keeps them strictly apart.

Jeg tjener tre tusind kroner om dagen.

I earn three thousand kroner a day. (income — tjene)

Efter den uge fortjener jeg virkelig en lang ferie.

After that week I really deserve a long holiday. (merit — fortjene)

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Decision test: could you replace the English with "is paid" or "makes money"? Use tjene. Could you replace it with "is worthy of" or "has it coming"? Use fortjene. Du tjener en god løn = "you earn a good salary"; du fortjener en god løn = "you deserve a good salary." Same English verb, two very different claims.

Common collocations

tjene penge — to earn / make money
tjene til (noget) — to earn enough for (rent, food)
tjene på (noget) — to profit from / make money on something
tjene et formål — to serve a purpose
tjene til livets ophold — to earn a living (set phrase)
en tjener — a waiter / server (the related noun)

Hun tjener til livets ophold som freelancer.

She earns a living as a freelancer.

A natural exchange

— Tjener du nok på den nye butik? — Ja, faktisk. Vi tjente dobbelt så meget sidste måned. — Det har du virkelig fortjent efter alt det arbejde.

— Are you making enough from the new shop? — Yes, actually. We made twice as much last month. — You've truly deserved that after all that work.

The last line is the whole lesson in one breath: the shop earns money (tjene), but the owner deserves the success (fortjene). Mix them up and a compliment turns into a confusing claim about wages. For the closely related money verb, see Købe.

Common mistakes

❌ Jeg tjener en pause efter det her.

Incorrect — this says you 'earn' a break as wages; for 'deserve' you need fortjene.

✅ Jeg fortjener en pause efter det her.

I deserve a break after this.

❌ Han fortjener tre hundrede kroner i timen.

Incorrect — for actual income you need tjene; fortjene means 'deserve.'

✅ Han tjener tre hundrede kroner i timen.

He earns three hundred kroner an hour.

❌ Vi har tjente mange penge i år.

Wrong form — the perfect uses the participle tjent, not the past tjente.

✅ Vi har tjent mange penge i år.

We've made a lot of money this year.

❌ Hvor meget tjenes du?

Wrong — this is a wrongly formed passive; the plain active is tjener du.

✅ Hvor meget tjener du?

How much do you earn?

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