Glugginn opnast ekki, því hann er fastur, og ég þarf að ýta varlega.

The window won’t open because it is stuck, and I need to push carefully.

Breakdown of Glugginn opnast ekki, því hann er fastur, og ég þarf að ýta varlega.

• ég: I
• vera: to be
• ekki: not
• þurfa: to need
• og: and
• glugginn: the window
• því: because
• hann: it
• opnast: to open
• fastur: stuck
• ýta: to push
• varlega: carefully

Questions & Answers about Glugginn opnast ekki, því hann er fastur, og ég þarf að ýta varlega.

Why is it glugginn and not just gluggi?

Glugginn means the window (definite). Icelandic typically marks definiteness with a suffix attached to the noun:

• gluggi = a window
• glugginn = the window
  Here -inn is the masculine nominative singular definite ending.

What’s going on with the verb opnast? Why not opnar?

Opnast is the so-called middle voice form (often used like “open” intransitively): it means opens / gets opened (i.e., becomes open), without naming an agent.

• Ég opna gluggann = I open the window (transitive; I do it)
• Glugginn opnast = The window opens (intransitive; it happens)

How is the negative ekki placed in Glugginn opnast ekki?

In main clauses, ekki usually comes after the finite verb (the verb that’s conjugated):

• opnast (finite verb) + ekki (negation)
  So Glugginn opnast ekki = The window doesn’t open.

Why does it say því here, and what does it mean grammatically?

Því here functions like because / since, introducing the reason. It’s a common, slightly formal/neutral way to give an explanation:

• ..., því hann er fastur = ..., because it is stuck.
  You’ll also see alternatives like af því að (very common, often a bit more explicit/colloquial).

Does því affect word order in the clause after it?

Yes. After því introducing a reason clause, you normally get subordinate-clause word order, where the finite verb typically comes after the subject (and often after certain adverbs):

• hann er fastur (subject hann
  • verb er)
    This looks the same as English here, but in many Icelandic subordinate clauses you’ll notice differences especially when adverbs like ekki are involved.

Why is the window referred to as hann (he)? Isn’t a window “it”?

Icelandic pronouns follow grammatical gender, not natural gender. Gluggi is masculine, so you refer to it with hann (masc. “it/he”).

• masculine: hann
• feminine: hún
• neuter: það
  In English we’d usually say it, but Icelandic uses the gendered pronoun.

Why is it fastur and not fast or fastur(a/e)?

Fastur is an adjective agreeing with glugginn (masculine, singular, nominative). Adjectives change form to match the noun’s gender, number, and case:

• masc. nom. sg.: fastur
• fem. nom. sg.: föst
• neut. nom. sg.: fast
  So with glugginn (masc.), you get fastur.

What does að do in ég þarf að ýta?

Þurfa commonly takes an infinitive clause introduced by að:

• ég þarf að ýta = I need to push
  It works a lot like English need to + verb, except Icelandic uses að
  • infinitive.

Is þarf always “need,” or can it mean something else?

Þurfa mainly means to need / to have to. Depending on context, it can sound like must/have to rather than a soft “need”:

• Ég þarf að fara = I need to go / I have to go
  In your sentence it’s a practical necessity: you need to push gently.

Why is it ýta with no object? What case would the object take?

Ýta means to push. You can use it without stating the object if it’s obvious (here: the window). If you do include the object, it typically takes the accusative:

• Ég ýti gluggann = I push the window
  You can also use prepositions to specify direction, e.g. ýta á (push on/press).

What is varlega grammatically, and where does it usually go?

Varlega is an adverb meaning gently/carefully. Many Icelandic adverbs are formed with -lega (similar to English -ly).
It commonly goes after the verb/infinitive it modifies: að ýta varlega = to push gently.

Why are there commas around því hann er fastur?

Icelandic punctuation often sets off explanatory clauses with commas. Here the middle part is an inserted reason:
Glugginn opnast ekki, því hann er fastur, og ég þarf að ýta varlega.
You’ll see variation in real texts, but commas like this are very common to mark the “because”-explanation as a parenthetical reason.

Could the sentence be phrased differently but mean the same thing?

Yes, several natural alternatives exist, for example:

• Glugginn opnast ekki af því að hann er fastur, svo ég þarf að ýta varlega.
• Glugginn opnast ekki. Hann er fastur, svo ég þarf að ýta varlega.
  These keep the meaning but change the connector style (því / af því að / svo) and the sentence structure.