Við leggjum bílnum við bensínstöðina og kaupum kaffi áður en við keyrum áfram.

No. The first Við means we and is a pronoun.

The second við means at / by / next to and is a preposition.

They are two different words that just happen to be spelled the same way. The first one is capitalized only because it begins the sentence.

All three are present tense, first-person plural forms:

• leggjum = we park
• kaupum = we buy
• keyrum = we drive

The ending -um is a common marker for we forms in the present tense.

Yes. The basic meaning of leggja is something like lay or put, but with vehicles it commonly means park.

So leggja bílnum is a normal way to say park the car. It is better to learn this as a set expression than to translate it too literally word for word.

Because in this meaning, leggja takes the vehicle in the dative.

So:

• bíllinn = the car (nominative)
• bílinn = the car (accusative)
• bílnum = the car (dative)

In this sentence, bílnum is the correct form because leggja bílnum uses the dative.

Because the preposition við takes the accusative case.

That means bensínstöðina is in the accusative singular definite form. In Icelandic, many prepositions require a specific case, and við is one of them.

All three can be possible depending on context.

The preposition við often has the sense of:

• at
• by
• next to
• beside

In this sentence, natural English would usually be at the gas station or by the gas station.

Because Icelandic usually expresses the as a suffix attached to the noun.

So here:

• bílnum = the car in the dative
• bensínstöðina = the gas station in the accusative

The exact ending changes depending on case, number, and gender.

Because the same subject continues across both verbs.

Icelandic can do the same thing English does:

• We park the car and buy coffee

There is no need to repeat we before buy unless you want special emphasis.

Áður en means before.

It introduces a subordinate clause:

• áður en við keyrum áfram = before we drive on / before we continue driving

It is best learned as a fixed expression.

Because this is a subordinate clause.

In main clauses, Icelandic often has verb-second word order. But subordinate clauses usually do not follow that same pattern. After áður en, the normal order is:

• við keyrum áfram = we drive on

So the subject við comes before the verb keyrum.

Áfram means on, onward, or further.

So keyrum áfram means:

• drive on
• keep driving
• continue driving

Without áfram, keyrum would simply mean drive.

Because kaffi here means coffee in a general, indefinite sense: they are buying some coffee.

If you said kaffið, that would mean the coffee, referring to specific coffee already known from the context.

Also, kaffi is the direct object here, but its nominative and accusative forms look the same, so you do not see a change in the word itself.