Ég kem strax aftur.

Koma is the dictionary form, meaning to come.
Kem is the 1st person singular present tense form, so it means I come / I’m coming.

A quick breakdown:

• ég kem = I come / I’m coming
• þú kemur = you come / you’re coming
• hann/hún/það kemur = he/she/it comes

So after ég, you use kem, not koma.

Yes. Icelandic often uses the present tense for something that is about to happen, especially with words like strax (right away / soon / immediately).

So Ég kem strax aftur is literally present tense, but in natural English it is often understood as something like I’ll be right back.

This is very normal in Icelandic.

Aftur can mean both again and back, depending on context.

In this sentence, with the verb koma (to come), it means back:

• koma aftur = come back

In other sentences, it can mean again:

• Segðu það aftur = Say that again

So here the context tells you that aftur means back, not again.

Because that is the most natural adverb order here.

• strax = right away / immediately
• aftur = back

So the sentence builds like this:

• Ég kem = I’m coming
• strax = right away
• aftur = back

Together: I’m coming right back.

You may sometimes see different word orders for emphasis, but Ég kem strax aftur is a very standard, natural way to say it.

Normally, yes, you include ég.

Icelandic is not a language where subject pronouns are usually left out in ordinary sentences. So:

• Ég kem strax aftur = normal
• Kem strax aftur = possible in some informal contexts, but not the basic neutral form learners should rely on

As a learner, it is best to keep the pronoun.

A rough learner-friendly pronunciation is:

yeg kyem strahks ahf-tur

A few notes:

• Ég begins with a y sound
• k before e in kem sounds somewhat palatalized, so it can sound a bit like ky
• strax has a clear x sound like ks
• aftur has the stress on the first syllable: AF-tur

If you want a more phonetic approximation:

• Ég ≈ yeg
• kem ≈ kyem
• strax ≈ strahks
• aftur ≈ AHF-tur

The accent mark in Icelandic is part of the spelling. It is not optional.

So é is a separate vowel letter from e. It usually indicates a different vowel sound, not just extra stress.

That means:

• Ég must be written with é
• writing Eg would be incorrect in standard Icelandic

For learners, the main thing to remember is: always keep the accent marks, because they are meaningful in Icelandic.

Here is a simple breakdown:

• Ég = subject pronoun, I
• kem = verb, come / am coming
• strax = adverb, right away / immediately
• aftur = adverb, back

So the structure is:

Subject + verb + adverb + adverb

There is no object in this sentence, because koma here is an intransitive verb: it does not take a direct object.

Yes, but the meaning or emphasis may shift slightly.

For example:

• Ég kem strax aftur = neutral, standard
• Strax kem ég aftur = more marked, with emphasis on right away

Icelandic often allows word order variation, but the standard learner-friendly version here is:

Ég kem strax aftur

That is the safest and most natural form to use first.