Leveringen bliver forsinket, fordi chaufføren ikke kan finde adressen.

Because Danish usually adds the definite article to the end of the noun.

• en levering = a delivery
• leveringen = the delivery

The same pattern appears in:

• en chauffør → chaufføren = the driver
• en adresse → adressen = the address

These are all common gender nouns, so the definite ending is -en.

Bliver forsinket often emphasizes that the delay is happening or coming about.

• bliver forsinket = is getting delayed / will be delayed
• er forsinket = is delayed

So bliver suggests more of a process or change of state, while er describes the state itself. In many real situations, both can be possible, but bliver forsinket sounds especially natural when the delay is caused by something happening right now.

Bliver is the present tense of blive, which often means become.
In this sentence, it helps form a passive construction:

• blive + past participle

So:

• bliver forsinket literally means something like becomes delayed

In natural English, that is usually translated as is delayed, is getting delayed, or will be delayed, depending on context.

Forsinket is the past participle of forsinke, meaning to delay.

In bliver forsinket, it is part of a passive structure:

• forsinke = to delay
• forsinket = delayed

So the whole phrase means that the delivery is on the receiving end of the action, rather than doing the action itself.

Because after fordi the clause is a subordinate clause, and Danish word order changes.

In a main clause, you would normally say:

• Chaufføren kan ikke finde adressen.

But after fordi, Danish typically places ikke before the finite verb:

• ... fordi chaufføren ikke kan finde adressen.

So this is a very important pattern:

• main clause: subject + verb + ikke
• subordinate clause: subject + ikke + verb

Because fordi introduces a subordinate clause, and subordinate clauses do not follow the normal Danish verb-second pattern of main clauses.

Main clauses in Danish usually put the finite verb in second position.
But subordinate clauses are different and usually have a structure like:

• subject + sentence adverb + finite verb + ...

So:

• fordi chaufføren ikke kan finde adressen

is correct subordinate-clause word order.

Because after a modal verb such as kan, the next verb stays in the infinitive.

• kan = can
• finde = find

So:

• kan finde = can find

This is similar to English:

• can find
• not can finds

Other Danish modal verbs work the same way, for example:

• vil finde = will find
• skal finde = must find
• må finde = may / must find

Fordi means because. It links the main statement to the reason for it.

• Leveringen bliver forsinket = the delivery is being delayed / will be delayed
• fordi chaufføren ikke kan finde adressen = because the driver cannot find the address

So fordi introduces the explanation.

Because Danish commonly uses a comma before a subordinate clause, and fordi introduces one.

So the comma separates:

• the main clause: Leveringen bliver forsinket
• the subordinate clause: fordi chaufføren ikke kan finde adressen

You will see this very often in written Danish.

Yes. Danish has more than one way to express the passive.

Possible versions include:

• Leveringen bliver forsinket
• Leveringen forsinkes

Both can mean The delivery is delayed / is being delayed.

Very roughly:

• blive-passive often feels a bit more like an event or change happening
• -s passive can sound a bit more formal, neutral, or written

In everyday speech, bliver forsinket is extremely common and natural.

A rough guide is sho-FER-en, but the middle vowel is not exactly like English.

A few helpful points:

• ch in chauffør is pronounced like sh
• the stress is mainly on the last part: -før
• ø is a front rounded vowel, somewhat like the vowel in French peur or German schön, not a normal English o

So chaufføren is roughly:

• sho-FER-en

but with a distinctly Danish ø sound in the stressed syllable.