Jeg er nødt til at bede om tilladelse, før jeg bruger det nye rum.

Er nødt til is a fixed expression meaning have to or need to. It usually emphasizes necessity or lack of choice, often because of rules, circumstances, or practical reality.

Skal can also mean must, but it is broader. It can express obligation, plans, or something that is going to happen. In this sentence, er nødt til highlights that asking permission is necessary.

Because the pattern is:

være nødt til at + infinitive

So:

• er nødt til = am compelled / have to
• at bede = to ask

Both parts belong to the normal structure. You would not normally say jeg er nødt bede.

The verb phrase bede om means ask for.

So:

• bede om noget = ask for something
• bede om tilladelse = ask for permission

Without om, bede usually means asking someone to do something, or praying. So om is important here.

Because bede is an infinitive after er nødt til:

• er nødt til at bede

But bruger is a finite verb inside a full clause:

• før jeg bruger det nye rum

That part has its own subject, jeg, so Danish uses a normal conjugated verb, not an infinitive.

Danish often uses the present tense in time clauses introduced by words like før, når, and hvis, even when the meaning is future.

English often does the same:

• before I use the new room not
• before I will use the new room

So før jeg bruger det nye rum is completely normal Danish.

Because før introduces a subordinate clause. In Danish subordinate clauses, the usual order is:

subject + verb

So:

• før jeg bruger det nye rum

If that whole clause comes first, then the main clause after it has inversion:

• Før jeg bruger det nye rum, er jeg nødt til at bede om tilladelse.

Because det nye rum is definite: the new room.

Compare:

• et nyt rum = a new room
• det nye rum = the new room

The adjective changes too:

• indefinite neuter: nyt
• definite: nye

So det nye rum is the correct definite form.

When Danish has a definite article in front of an adjective, the noun usually stays in its basic form:

• det nye rum

But when there is no adjective, the noun itself takes the definite ending:

• rummet = the room

So:

• rummet = the room
• det nye rum = the new room

Because rum is a neuter noun.

You can see that from its indefinite form:

• et rum = a room

Neuter nouns use det in this kind of definite phrase:

• det nye rum

Common-gender nouns use den:

• den nye bog = the new book

Here før is a conjunction meaning before. It introduces a clause:

• før jeg bruger det nye rum

It is not acting as a preposition here. A preposition would normally be followed by a noun phrase, not a full clause.

The comma marks the start of the subordinate clause.

In modern Danish, you may see both styles:

• Jeg er nødt til at bede om tilladelse, før jeg bruger det nye rum.
• Jeg er nødt til at bede om tilladelse før jeg bruger det nye rum.

Both can be correct, depending on whether the writer uses start comma. The important thing is to be consistent.

Often yes. Inden jeg bruger det nye rum would also mean before I use the new room.

In many contexts, før and inden are both possible. Før is often the more neutral and everyday choice, while inden can sound a little more like before that time or beforehand.

You could, but the nuance changes.

• Jeg er nødt til at bede om tilladelse = I have to ask permission; it is necessary
• Jeg skal bede om tilladelse = I am supposed to / I will have to ask permission

So er nødt til sounds more clearly like necessity, while skal can also sound like a plan or instruction.

Not always. Rum can mean room, but it can also mean space or area, depending on context.

In this sentence, room is probably the most natural translation. But in other contexts, rum may be more abstract, such as space for discussion or space in a building.