Tasken vil blive lagt i garderoben, før gæsterne kommer.

Because Danish usually marks the definite form of a noun by adding the article to the end of the word.

• taske = a bag
• tasken = the bag

So Tasken vil blive lagt... means The bag will be placed...

This is one of the first big differences from English: instead of a separate word like the, Danish often attaches it to the noun.

This is a passive future construction.

• vil = will
• blive = be / become
• lagt = past participle of lægge (to lay / to place)

Together, vil blive lagt means will be placed.

So the structure is:

• Tasken = subject
• vil blive lagt = future passive verb phrase
• i garderoben = location
• før gæsterne kommer = before the guests arrive

It works very much like English will be placed.

Because after blive in a passive construction, Danish uses the past participle.

Compare:

• at lægge = to place
• har lagt = has placed
• bliver lagt = is being placed / is placed
• vil blive lagt = will be placed

So lagt is the correct form here because it is the participle used in the passive.

Yes, often it could.

A possible alternative is:

• Tasken vil lægges i garderoben, før gæsterne kommer.

This also means The bag will be placed in the cloakroom before the guests arrive.

In many cases:

• blive + participle sounds a bit more like an event happening to something
• -s passive can sound slightly more formal, written, or general

But both are normal Danish patterns.

Because Danish often uses the present tense in time clauses that refer to the future, especially after words like:

• før = before
• når = when
• efter = after
• mens = while

So:

• før gæsterne kommer = before the guests arrive

This is very similar to English, which also normally says before the guests arrive, not before the guests will arrive.

Because før gæsterne kommer is a subordinate clause, and subordinate clauses in Danish normally keep the basic subject-verb order:

• gæsterne = subject
• kommer = verb

So it is:

• før gæsterne kommer

not an inverted order.

This is different from main clauses in Danish, where the finite verb often comes in second position.

The sentence follows normal Danish main-clause word order.

• Tasken = first element
• vil = finite verb in second position
• blive lagt i garderoben = rest of the verb phrase and complements
• før gæsterne kommer = subordinate clause

Danish is a V2 language, which means the finite verb usually comes second in main clauses.

Here, the first element is the subject Tasken, so the verb vil comes right after it.

Garderoben is the definite form of garderobe.

• garderobe = cloakroom, wardrobe, coat check, changing room depending on context
• garderoben = the cloakroom / the wardrobe

In this sentence, i garderoben most naturally means in the cloakroom or in the wardrobe/storage area, depending on the situation.

For the same reason as tasken: Danish usually adds the definite article to the noun.

• i en garderobe = in a cloakroom
• i garderoben = in the cloakroom

So -en here means the.

Yes, and that would also be natural.

• Tasken bliver lagt i garderoben = The bag is being placed / gets placed in the cloakroom
• Tasken vil blive lagt i garderoben = The bag will be placed in the cloakroom

Using vil makes the future meaning more explicit. Without vil, the sentence can sound more like a present arrangement, a routine, or something understood from context.

They are not the same.

• vil blive lagt = will be placed; often neutral future, prediction, or what is going to happen
• skal lægges / skal blive lagt = must be placed / is to be placed; obligation, instruction, or requirement

So:

• Tasken vil blive lagt i garderoben = this will happen
• Tasken skal lægges i garderoben = this is required

English learners often mix these up because English will and shall/must do not match Danish perfectly.

Yes. English speakers often confuse lægge and ligge.

• lægge = to lay / to put something somewhere; usually takes an object
• ligge = to lie / to be lying somewhere; no direct object

In this sentence:

• Tasken vil blive lagt i garderoben = someone will place the bag there

If you were describing its position instead, you might say:

• Tasken ligger i garderoben = The bag is in the cloakroom / is lying in the cloakroom

So lagt comes from lægge, the verb of placing.

Yes. You can say:

• Før gæsterne kommer, vil tasken blive lagt i garderoben.

This means the same thing.

Notice the main clause after the subordinate clause:

• vil tasken blive lagt...

The verb vil still has to be in second position in the main clause, so when something else comes first, the subject moves after the verb.

That inversion is very important in Danish main clauses.