Ég kveiki á lampanum þegar það er myrkur úti.

I turn on the lamp when it is dark outside.

Breakdown of Ég kveiki á lampanum þegar það er myrkur úti.

• ég: I
• vera: to be
• það: it
• þegar: when
• lampinn: the lamp
• myrkur: dark
• úti: outside
• kveikja á: to light

Questions & Answers about Ég kveiki á lampanum þegar það er myrkur úti.

Why is it Ég kveiki and not Ég kveik or Ég kveikur?

Kveiki is the 1st person singular present tense form of the verb kveikja (to light/turn on).

• Infinitive: að kveikja
• Present: ég kveiki, þú kveikir, hann/hún/það kveikir, við kveikjum, þið kveikið, þeir/þær/þau kveikja
  So Ég kveiki is simply the normal conjugation for I turn on / I light.

---

What does á mean here, and why is it used with kveikja?

In this expression, kveikja á + dative is an idiomatic verb + preposition combination meaning to turn on (a light/device).
So kveikja by itself is more like ignite/light, but kveikja á is the everyday way to say turn on.

---

Why is it á lampanum and not á lampann or á lampi?

Because kveikja á governs the dative case.

• lampi (a lamp) is masculine; its dative singular definite form is lampanum.
  So á lampanum literally means on the lamp (i.e., activating it), with lampanum in the dative.

---

What does the ending -num in lampanum tell me?

-num here signals dative singular + definite article for many masculine nouns (and some neuters).
Think of it as lampi + the + (dative role) → lampanum = the lamp (in dative).

---

Why is the word það used in þegar það er myrkur úti?

Það here is a dummy/impersonal subject, like English it in it is dark. Icelandic often requires an explicit subject, so you get:

• það er myrkur = it is dark
  Even though það doesn’t refer to a specific thing.

---

Why is it myrkur and not something like myrkurt or myrkurinn?

Myrkur is commonly used as a predicative word meaning dark/darkness in the pattern það er myrkur = it is dark.
It behaves a bit like a “noun-like” adjective here (roughly darkness), and this specific construction is just the standard, natural phrasing.

---

What role does úti play? Could I leave it out?

Úti means outside and specifies that it’s dark outdoors.

• þegar það er myrkur = when it is dark (general)
• þegar það er myrkur úti = when it is dark outside
  You can omit úti, but then it’s less specific.

---

What does þegar do to the word order? Why is it þegar það er (not þegar er það)?

Þegar introduces a subordinate time clause (when...). In Icelandic subordinate clauses, the finite verb (here er) normally comes after the subject, unlike main-clause verb-second patterns.
So you get: þegar + subject + verb → þegar það er ...

---

Could I swap the clauses and start with Þegar það er myrkur úti, ...? What happens to word order then?

Yes. If you front the subordinate clause, the main clause typically shows verb-second word order with inversion (the verb comes right after the fronted clause):

• Þegar það er myrkur úti, kveiki ég á lampanum.
  Notice kveiki comes before ég.

---

Is Ég kveiki á lampanum present tense or does it mean “I usually turn on the lamp”?

Grammatically it’s present tense, but Icelandic present tense often covers both:

• what you do now (I’m turning it on)
• what you do habitually (I turn it on / I usually turn it on)
  With þegar... it naturally reads as a habitual/general action: I turn on the lamp when it’s dark outside.

---

How do I pronounce tricky parts like Ég, kveiki, það, and úti?

A practical guide (approximate):

• Ég: like yeh(g) (often the g is soft or barely heard)
• kveiki: roughly KVEI-ki (first syllable stressed; ei like “ay”)
• það: like tha (the ð is a voiced “th” sound, like in this)
• úti: OO-ti (long ú = “oo”)
  Main stress in Icelandic is almost always on the first syllable: KVEI-ki, LAM-pa-num, MYR-kur.

---

Could I say ljósinu instead of lampanum?

Yes, depending on what you mean:

• kveikja á lampanum = turn on the lamp (the fixture/device)
• kveikja á ljósinu = turn on the light (the light itself; very common)
  Both work; they just focus on slightly different nouns.