Vi tager metroen, så slipper vi for den lange kø ved broen.

Because metroen is the definite form of en metro.

• en metro = a metro
• metroen = the metro

In Danish, with transport, it is very common to say tage + definite form:

• tage bussen = take the bus
• tage toget = take the train
• tage metroen = take the metro

So Vi tager metroen sounds natural in the same way We’re taking the metro does in English.

Danish often uses the present tense for planned or expected future actions.

So Vi tager metroen can mean:

• We take the metro
• We’re taking the metro
• We’ll take the metro

The time is understood from the situation, not only from the verb form. English does this too sometimes: Tomorrow we take the train is possible, though Danish does it even more naturally.

Because Danish main clauses follow the V2 rule: the finite verb usually comes in the second position.

Here, så takes the first position in the second clause, so the verb comes next:

• så slipper vi ...

Not:

• så vi slipper ...

In this sentence, så means something like so / then / as a result, and it starts a new main clause. That causes the inversion.

Slippe for is a fixed expression meaning:

• avoid
• be spared
• not have to deal with

So slipper vi for den lange kø means we avoid the long queue or we don’t have to deal with the long queue.

This is different from plain slippe, which can mean things like get away, escape, or be released depending on context.

When Danish has a definite noun with an adjective, the pattern is:

den/det/de + adjective + noun

So:

• en lang kø = a long queue
• køen = the queue
• den lange kø = the long queue

That is why you do not say den lange køen here.

Also notice the adjective changes:

• lang → lange

That -e form is normal in this kind of definite phrase.

Ved usually means by, near, or at.

So ved broen means by the bridge or near the bridge. It does not necessarily mean on the bridge.

• bro = bridge
• broen = the bridge

Because the sentence contains two main clauses:

• Vi tager metroen
• så slipper vi for den lange kø ved broen

A comma is commonly used in Danish to separate main clauses like this, especially when the second clause gives a result or consequence.

Yes. The second part is a new main clause, so it needs its own subject.

That is why you say:

• Vi tager metroen, så slipper vi ...

and not:

• Vi tager metroen, så slipper ...

In Danish, you normally cannot leave the subject out in a clause like this.

Here it can feel like both.

It links the first idea to the result:

• We take the metro, so we avoid...
• We take the metro; then/as a result we avoid...

In natural English, so is usually the best translation here, but the Danish så often carries that extra sense of then / as a result.

Kø is tricky for English speakers because of ø.

A rough guide:

• k is like an English k
• ø is a rounded front vowel, something like the vowel in French peu or German schön
• the word is very short

A rough IPA pronunciation is [kʰøˀ].

A practical tip: make an eh sound, but round your lips as if you were saying o.

There is no exact English equivalent, so it usually takes a bit of practice.