Ruslapokinn er fullur, svo ég tek nýjan ruslapoka úr skápnum.

The trash bag is full, so I take a new trash bag out of the cabinet.

Breakdown of Ruslapokinn er fullur, svo ég tek nýjan ruslapoka úr skápnum.

• ég: I
• vera: to be
• taka: to take
• nýr: new
• svo: so
• fullur: full
• skápurinn: the cabinet
• ruslapokinn: the trash bag
• úr: out of

Questions & Answers about Ruslapokinn er fullur, svo ég tek nýjan ruslapoka úr skápnum.

Why does ruslapokinn end in -inn?

-inn is the suffix for the definite article (equivalent to the) attached to the noun.

• ruslapoki = a trash bag
• ruslapokinn = the trash bag

It’s the masculine singular nominative definite form of ruslapoki.

Why is it Ruslapokinn er fullur and not fullt or full?

Adjectives agree with the noun in gender, number, and case. Ruslapokinn is masculine singular nominative, so the adjective is also masculine singular nominative: fullur.
For comparison:

• feminine: taskan er full (bag)
• neuter: glasið er fullt (glass)
• plural: pokarnir eru fullir (bags)

What’s the function of svo here?

svo is a common connector meaning so / therefore / and so. It links the cause and the result:

• The bag is full, so I take a new one.

It’s very frequent in everyday Icelandic.

Why is there a comma before svo?

Icelandic often uses a comma to separate two clauses when a connector like svo introduces the second clause, especially when the first clause is complete on its own:

• Ruslapokinn er fullur, svo ...

In informal writing you may see variation, but this comma is very normal.

Why is the verb tek (not taka or tekur)?

tek is the 1st person singular present tense of taka (to take):

• ég tek = I take
• þú tekur = you take
• hann/hún/það tekur = he/she/it takes

So ég tek matches the subject ég.

Why is it nýjan ruslapoka (with -an)?

Because ruslapoka is the direct object of tek, and taka takes an accusative object in this meaning.
So the noun and adjective shift to accusative masculine singular:

• nominative: nýr ruslapoki
• accusative: nýjan ruslapoka

Why is the second ruslapoka not definite (why not nýjan ruslapokann)?

Because the sentence is introducing a new bag, not referring to a specific previously-identified bag. In English you’d naturally say a new trash bag, not the new trash bag (unless you had already agreed on a particular one).
So:

• ruslapokinn = the current/known bag (the one that’s full)
• nýjan ruslapoka = a new bag (a replacement)

What does úr skápnum mean grammatically, and why skápnum?

úr means out of / from (inside) and it governs the dative case.
So skápur (cabinet) becomes dative singular, and it’s also definite:

• nominative: skápur = a cabinet
• dative definite: skápnum = from the cabinet / out of the cabinet

So úr skápnum literally means out of the cabinet.

Could I say af skápnum instead of úr skápnum?

Usually no, not with the same meaning.

• úr skápnum = out of the cabinet (from inside it)
• af skápnum tends to mean off the cabinet (from its surface), and af is used differently.

If the bag is stored inside the cabinet, úr skápnum is the natural choice.

Why does Icelandic repeat ruslapoki instead of using a pronoun like one?

Icelandic can use pronouns, but it’s extremely normal to repeat the noun, especially when it keeps the sentence clear. English uses one a lot; Icelandic often just restates the noun:

• tek nýjan ruslapoka = take a new trash bag

You can sometimes rephrase, but repetition is not considered clunky in the same way.

Is ruslapoki a compound word, and how does that affect meaning?

Yes. It’s made of:

• rusl = trash
• poki = bag

In compounds, the first part modifies the second, so ruslapoki is literally a trash-bag. Compounds are extremely productive in Icelandic.

Is the word order fixed, or could it be ..., svo tek ég nýjan ruslapoka ...?

Both are possible, but the emphasis changes slightly.

• ..., svo ég tek ... is very straightforward: connector + subject + verb.
• ..., svo tek ég ... is also good; it puts a bit more focus on the action tek (verb-first after svo can sound a bit more narrative).

In everyday speech you’ll hear both patterns.