Í hvert sinn sem textíllinn kemur flokkum við hann.

Í hvert sinn sem means every time that or each time that.

It works as a set expression:

• í = in
• hvert sinn = each time / every occasion
• sem = that / when

So the whole phrase introduces a repeated situation:

• Í hvert sinn sem textíllinn kemur ...
  = Every time the textile comes ...

In natural English, you usually would not translate it word-for-word. It is best learned as one expression: í hvert sinn sem = every time.

Because hvert sinn is part of the fixed expression í hvert sinn, which uses the accusative.

The noun sinn here means time / occasion and in this expression it appears as:

• hvert = accusative singular form of hver for this noun
• sinn = the noun in the matching case

A learner often expects í to mean location and therefore take the dative, but in a lot of expressions Icelandic does not always match the simplest rule you first learn. Í hvert sinn is just the normal idiomatic form for every time / on each occasion.

So the best approach is:

• learn í hvert sinn sem as a whole pattern
• use it the same way each time

Here sem links the time expression to the clause that follows it.

In Í hvert sinn sem textíllinn kemur, sem is roughly like English that or when in every time that / every time when.

So:

• Í hvert sinn sem ... = every time that ...
• Í hvert sinn sem textíllinn kemur = every time the textile comes / arrives

It is not a relative pronoun here in the same way as English who or which. It is simply part of the structure that introduces the repeated event.

Because -inn is the definite article attached to the noun.

• textíll = textile
• textíllinn = the textile

Icelandic usually puts the at the end of the noun instead of using a separate word like English.

So:

• maður = man
• maðurinn = the man
• textíll = textile
• textíllinn = the textile

This is a very common Icelandic word order pattern.

The sentence begins with an adverbial phrase:

• Í hvert sinn sem textíllinn kemur

When something other than the subject comes first, Icelandic normally keeps the finite verb in the second position. This is often called the V2 rule.

So the structure is:

1. fronted element: Í hvert sinn sem textíllinn kemur
2. finite verb: flokkum
3. subject: við
4. object: hann

That is why you get:

• Í hvert sinn sem textíllinn kemur flokkum við hann.

If you started directly with the subject, you would say:

• Við flokkum hann í hvert sinn sem textíllinn kemur.

Both are fine, but the given sentence emphasizes the every time idea by putting it first.

Flokkum is the present tense, 1st person plural form of the verb að flokka = to sort / classify.

So:

• að flokka = to sort
• ég flokka = I sort
• við flokkum = we sort

In this sentence:

• flokkum við hann = we sort it

Even though við comes after the verb because of word order, flokkum still clearly means we sort.

Kemur is the present tense, 3rd person singular form of að koma = to come / arrive.

So:

• að koma = to come
• hann kemur = he comes
• hún kemur = she comes
• það kemur = it comes

Here the subject is textíllinn, which is singular, so the verb is singular too:

• textíllinn kemur = the textile comes / arrives

Depending on context, English might translate this as comes in, arrives, or is received.

Because Icelandic nouns have grammatical gender, and pronouns must agree with the noun’s gender, not with natural gender or English habits.

Textíll is a masculine noun, so when referring back to it, Icelandic uses:

• hann = he / it for masculine nouns

So:

• textíllinn → masculine
• therefore hann

In English, we usually say it for objects. In Icelandic, the equivalent pronoun depends on grammatical gender:

• masculine noun → hann
• feminine noun → hana
• neuter noun → það

So in this sentence, hann means it, referring back to textíllinn.

Yes. Hann is the direct object of flokkum.

The verb að flokka takes an object in the accusative, and hann is the accusative form of the masculine singular pronoun.

So:

• við flokkum hann = we sort it

This is one of those places where English and Icelandic look similar on the surface, but in Icelandic the case matters grammatically.

Yes, effectively that is what is happening.

The first part sets up the repeated condition/time frame:

• Í hvert sinn sem textíllinn kemur
  = Every time the textile comes

Then the main clause gives the action:

• flokkum við hann
  = we sort it

So the full sentence is:

• Every time the textile comes, we sort it.

This structure is very common in Icelandic. When the subordinate or introductory part comes first, the main clause usually shows the verb-before-subject order discussed above.

Yes, very often.

The verb að koma literally means to come, but in many practical or business/logistics contexts, English will naturally use arrive or come in.

So depending on context, you might translate:

• textíllinn kemur as
  the textile comes,
  the textile arrives, or
  the textile comes in

All of these can be reasonable. The Icelandic grammar stays the same.

Yes, but the word order will change a little.

For example:

• Í hvert sinn sem textíllinn kemur flokkum við hann.
  = Every time the textile comes, we sort it.

You could also say:

• Við flokkum hann í hvert sinn sem textíllinn kemur.

This also means:

• We sort it every time the textile comes.

The difference is mostly one of focus and style:

• starting with Í hvert sinn sem ... emphasizes the repeated timing
• starting with Við ... emphasizes we

Both are grammatical.

Probably these three:

1. Learn the expression í hvert sinn sem
Treat it as a chunk meaning every time that.

2. Notice Icelandic V2 word order
When the sentence begins with something other than the subject, the finite verb usually comes before the subject:

• Í hvert sinn sem ... flokkum við ...

not

• Í hvert sinn sem ... við flokkum ...

3. Pronouns follow grammatical gender
Because textíllinn is masculine, the object pronoun is hann, even though English would say it.