På klinikken sidder en patient og venter på sin undersøgelse.

This is very common in Danish. You can start a sentence with something other than the subject, such as a place, time, or object.

Here, På klinikken means at the clinic, and it has been moved to the front for emphasis or simply because it sounds natural in context.

When Danish begins with something other than the subject, it still keeps the verb in second position. That is why you get:

På klinikken sidder en patient ...

and not:

På klinikken en patient sidder ...

So the basic pattern is:

• normal order: En patient sidder på klinikken
• with fronted place phrase: På klinikken sidder en patient

This is called V2 word order.

Because Danish is a verb-second language.

Once På klinikken is placed first, the finite verb must come next:

• På klinikken = first element
• sidder = second element
• en patient = subject comes after the verb

So even though en patient is still the subject, it appears after the verb because something else has taken the first slot.

In this sentence, på klinikken means at the clinic.

Danish often uses på with places and institutions where English would use at. So although på often means on, it does not always translate literally.

Examples:

• på skolen = at school
• på kontoret = at the office
• på hospitalet = at the hospital
• på klinikken = at the clinic

So here, think of på as the natural Danish preposition used with this location, not as a literal on.

Klinikken is the definite form of klinik, meaning the clinic.

In Danish, the definite article is usually added to the end of the noun:

• en klinik = a clinic
• klinikken = the clinic

So på klinikken means at the clinic.

This suffix-style definite article is one of the big differences from English.

Yes, sidder literally means sits or is sitting.

But in Danish, verbs like sidde, stå, and ligge are used very naturally to describe someone's position while doing something.

So:

• sidder og venter = is sitting and waiting

In English, we might simply say a patient is waiting, but Danish often prefers to include the physical posture if it is relevant or natural.

It sounds idiomatic and everyday, not overly literal.

This is a very common Danish pattern:

sidder og + verb

It means that someone is doing something while sitting.

So:

• sidder og venter = is sitting and waiting
• sidder og læser = is sitting and reading
• sidder og arbejder = is sitting and working

You could say just venter, but sidder og venter gives a more vivid picture and sounds very natural.

Because Danish often links posture verbs and activity verbs with og:

• han står og taler = he is standing and talking
• hun ligger og sover = she is lying and sleeping
• en patient sidder og venter = a patient is sitting and waiting

Even though English sometimes uses and in a similar way, Danish uses this structure very regularly.

It does not mean two completely separate actions here. Instead, it describes one situation: the patient is waiting while sitting.

Because vente på means to wait for someone or something.

So:

• venter = is waiting
• venter på sin undersøgelse = is waiting for his/her examination

The preposition på is required when you say what someone is waiting for.

Examples:

• Jeg venter på bussen = I am waiting for the bus
• Hun venter på sin ven = She is waiting for her friend

So in this sentence, på belongs with venter.

Because the two instances of på do different jobs:

• På klinikken = a location phrase, meaning at the clinic
• venter på sin undersøgelse = part of the verb expression vente på, meaning wait for

So even though the same word appears twice, it is not the same grammatical use each time.

Because sin is the reflexive possessive form in Danish.

It is used when the possessor is the subject of the clause.

Here, the subject is en patient, and the examination belongs to that same patient, so Danish uses:

sin undersøgelse

not:

• hans undersøgelse = his examination, possibly someone else’s subject
• hendes undersøgelse = her examination

So sin tells you that the patient is waiting for their own examination.

That depends on the gender and number of the noun being possessed.

The noun here is undersøgelse, which is:

• common gender
• singular

So the correct reflexive possessive is sin.

The pattern is:

• sin
  • common gender singular noun
• sit
  • neuter singular noun
• sine
  • plural noun

Examples:

• sin bog = his/her own book
• sit hus = his/her own house
• sine bøger = his/her own books

So:

• sin undersøgelse is correct because undersøgelse is a singular en-word

Undersøgelse is an en-word:

• en undersøgelse = an examination / an exam / an assessment
• undersøgelsen = the examination

That is one reason the sentence uses sin rather than sit.

Not only, but in this sentence that is clearly the meaning.

Undersøgelse can mean:

• an examination
• an investigation
• an inspection
• a survey or study, depending on context

Because the sentence mentions klinikken and patient, the natural meaning here is a medical examination.

Because Danish does not need an extra auxiliary here the way English often does.

English says:

• A patient is waiting
• A patient is sitting and waiting

Danish can simply use the present tense:

• en patient venter
• en patient sidder og venter

So sidder and venter already carry the present-tense meaning. No separate word like English is is needed.

Yes, absolutely.

That version is also correct. It just has a more neutral word order, with the subject first:

En patient sidder på klinikken og venter på sin undersøgelse.

The original sentence,

På klinikken sidder en patient og venter på sin undersøgelse,

puts more focus on the location or uses the location as the starting point of the sentence.

Both are natural Danish.

It is similar, but not identical.

Patient in Danish is pronounced roughly like pa-see-ENT with the stress toward the end.

A rough learner-friendly guide:

• patient ≈ pa-si-ENT

The exact vowels are different from English, of course, but the main thing to notice is that it does not sound exactly like the English word patient.

A rough approximation for English speakers is:

UN-der-suh-gel-se

But this is only approximate. The difficult part is the Danish vowel in sø, which has no exact English equivalent.

It helps to break it up like this:

• under
• søg
• else

So: under-søg-else

If you are learning pronunciation, this is a good word to listen to from native audio, because the vowels are much easier to imitate from hearing than from spelling.

Grammatically, en patient is indefinite and means a patient.

In context, it usually refers to one patient who is present in the scene, but it does not identify which one specifically.

So it is like English a patient, not the patient.

If it were definite, you would get:

• patienten = the patient

Yes.

In this sentence, the subject is still en patient, even though it comes after the verb because of Danish word order.

So sin can still refer back to en patient:

På klinikken sidder en patient og venter på sin undersøgelse.

The important thing is not where the subject appears physically in the sentence, but what the subject is grammatically.

So yes, sin is completely correct here.