Hann kaupir sér kaffi í búðinni.

He buys himself coffee at the store.

Breakdown of Hann kaupir sér kaffi í búðinni.

• hann: he
• kaupa: to buy
• búðin: the store
• í: at
• kaffið: the coffee
• sér: her (reflexive)

Questions & Answers about Hann kaupir sér kaffi í búðinni.

Why is it Hann and not Hann er (or some other word order) at the start?

Icelandic is a verb-second (V2) language in main clauses: the finite verb typically comes in the second position.

• Hann kaupir ... = subject (1st) + verb (2nd)
  If you start with something else, the verb still stays second:
• Í dag kaupir hann sér kaffi í búðinni. (Today, he buys himself coffee in the shop.)

What does sér do here, and why isn’t it just kaff i without it?

sér is a reflexive pronoun meaning something like for himself / to himself, showing the purchase benefits the subject.

• Hann kaupir kaffi. = He buys coffee. (neutral statement)
• Hann kaupir sér kaffi. = He buys himself coffee. (he’s buying it for his own use)

Why is it sér and not sig?

Because different verbs/prepositions require different cases. Here, kaupa (að kaupa) with this “for oneself” meaning takes a dative reflexive: sér.

• sig is accusative, used in other patterns (often after certain verbs/prepositions).
  So it’s about case selection, not a free choice.

What case is sér, and how does it relate to honum or sjálfum sér?

sér is dative reflexive, used when the subject refers back to itself.

• Non-reflexive dative for he would be honum (= to/for him), but that would usually imply someone else is the subject.
  You can add emphasis with:
• Hann kaupir sér sjálfum kaffi. = He buys coffee for himself (emphatically: himself, not someone else).

Why is there no word for a in kaffi?

Icelandic doesn’t use an indefinite article like English a/an. A bare noun often covers that meaning:

• kaffi can mean coffee (mass noun) or a coffee (one serving), depending on context.

What case is kaffi here, and how can I tell?

It’s the direct object of kaupir, so it’s in the accusative. For kaffi (a neuter noun), nominative and accusative singular look the same: kaffi.
You often identify the case by function (object of the verb), not by visible endings.

Why is it í búðinni (with -inni) instead of just í búð?

búðinni is dative definite singular: the shop in the location sense. Icelandic marks definiteness as a suffix:

• búð = a shop
• búðin = the shop (nominative)
• í búðinni = in the shop (dative after í for location)

Why does í take dative here—doesn’t í sometimes take accusative?

Yes. í can govern:

• dative for location (being somewhere): í búðinni = in the shop
• accusative for movement into (direction): í búðina = into the shop
  So the case choice encodes static location vs. motion.

Could I say Hann kaupir kaffi í búðinni without sér, and would it change the meaning?

Yes, and it’s grammatical. The meaning becomes less “self-directed”:

• Hann kaupir kaffi í búðinni. = He buys coffee in the shop. (could be for anyone)
• Hann kaupir sér kaffi í búðinni. = He buys himself coffee in the shop. (for his own consumption)

Why is the definite article attached at the end (búðinni) instead of being a separate word like the?

In Icelandic, the most common definite article is a suffix on the noun:

• búð (shop) → búðin (the shop)
  The ending changes with case:
• nominative: búðin
• accusative: búðina
• dative: búðinni
• genitive: búðarinnar

How do I pronounce Hann kaupir sér kaffi í búðinni (roughly)?

A practical approximation:

• Hann: like hahnn (short a)
• kaupir: KOY-pir (the au is like oy)
• sér: syair (close to “syeh(r)”; é is like “yeh”)
• kaffi: KAHF-fee (double ff is a long-ish unaspirated f sound)
• í: like ee
• búðinni: BOO-thin-nee (ð is often a soft “th” sound)

Is kaupir present tense, and how would I make this past tense?

Yes, kaupir is present tense (3rd person singular) of að kaupa (to buy).
Past tense:

• Hann keypti sér kaffi í búðinni. = He bought himself coffee in the shop.