Eftir að hafa örmerkt hvolpinn skráir dýralæknirinn örmerkjarnúmerið.

It is a compact way to say after having microchipped the puppy.

The structure is:

• eftir = after
• að hafa = to have
• örmerkt = microchipped / having microchipped
• hvolpinn = the puppy

So eftir að hafa örmerkt hvolpinn literally means something like after having microchipped the puppy.

In more expanded Icelandic, you could also say:

• Eftir að dýralæknirinn hefur örmerkt hvolpinn ...

That means basically the same thing, but the original sentence is shorter and more compact.

Because this is a non-finite construction. Icelandic often leaves the subject unspoken in phrases like að hafa + supine when the subject is understood from the main clause.

Here, the understood subject is dýralæknirinn.

So the meaning is:

• After the veterinarian has microchipped the puppy, the veterinarian registers the microchip number.

Icelandic avoids repeating the subject when it is already clear.

This is because Icelandic follows a verb-second pattern in main clauses.

The first element in the sentence is the whole introductory phrase:

• Eftir að hafa örmerkt hvolpinn

Once that phrase takes first position, the finite verb must come second:

• skráir

Then the subject comes after it:

• dýralæknirinn

So:

• Eftir að hafa örmerkt hvolpinn skráir dýralæknirinn örmerkjarnúmerið.

If you removed the fronted phrase, the more basic order would be:

• Dýralæknirinn skráir örmerkjarnúmerið.

Here örmerkt is a verb form used with hafa. In Icelandic grammar, this is the supine form, often called sagnbót.

It is the form used in perfect constructions such as:

• hefur örmerkt = has microchipped
• að hafa örmerkt = to have microchipped

So in this sentence, örmerkt is not acting like an adjective that agrees with hvolpinn. It is part of the verbal expression að hafa örmerkt.

Because hvolpinn is the direct object of örmerkja.

The noun is:

• hvolpur = puppy

But Icelandic nouns change form depending on case. Here the puppy is the thing being microchipped, so it is in the accusative.

That gives:

• hvolpurinn = the puppy (nominative, subject form)
• hvolpinn = the puppy (accusative, object form)

So:

• Hvolpurinn geltir. = The puppy barks.
• Dýralæknirinn örmerkir hvolpinn. = The vet microchips the puppy.

It is the direct object of skráir, so it is in the accusative.

However, because örmerkjarnúmerið is a neuter singular noun, the nominative and accusative forms are often identical in appearance. So even though it is an object, it looks the same as the subject form would.

What matters is its job in the sentence:

• dýralæknirinn = subject
• skráir = registers
• örmerkjarnúmerið = object

Those endings are the definite article attached to the noun.

In Icelandic, the is usually not a separate word. Instead, it is added to the end of the noun.

So:

• dýralæknir = veterinarian
• dýralæknirinn = the veterinarian

and:

• örmerkjarnúmer = microchip number
• örmerkjarnúmerið = the microchip number

This is very common in Icelandic and is one of the first things learners need to get used to.

Because the sentence is describing a general procedure or what normally happens.

Icelandic often uses the present tense for:

• routines
• instructions
• standard procedures
• general truths

So the sentence means something like:

• After microchipping the puppy, the veterinarian registers the microchip number.

It is not necessarily talking about one specific event in the past.

If you wanted a past-tense version, you could say:

• Eftir að hafa örmerkt hvolpinn skráði dýralæknirinn örmerkjarnúmerið.

Yes. A more explicit version would be:

• Eftir að dýralæknirinn hefur örmerkt hvolpinn skráir hann örmerkjarnúmerið.

That literally means:

• After the veterinarian has microchipped the puppy, he registers the microchip number.

The original sentence is simply a more compact way of expressing the same idea.

There are two main clues:

• Icelandic verb-second word order allows the verb to come before the subject when something else is placed first.
• dýralæknirinn is in the nominative, which is the normal subject case.

So even though English learners may expect the subject to come before the verb, Icelandic does not always work that way.

In this sentence:

• Eftir að hafa örmerkt hvolpinn = first element
• skráir = finite verb in second position
• dýralæknirinn = subject
• örmerkjarnúmerið = object

Yes. Icelandic uses compound words very freely.

For example:

• dýralæknirinn contains dýra

  • læknir
    • the definite ending
  • literally something like animal-doctor-the
  • meaning the veterinarian

• örmerkjarnúmerið is also a compound referring to the number connected with the microchip

  • meaning the microchip number

Long compounds are extremely common in Icelandic, so getting comfortable with breaking them into parts is very helpful.

The dictionary forms are:

• örmerkja = to microchip
• skrá = to register

The forms in the sentence are:

• örmerkt = supine form used with hafa
• skráir = present tense, he/she/it registers

So if you look them up, you would search for örmerkja and skrá.