Jeg mangler en ren skjorte til mødet i morgen.

Mangler comes from at mangle, which means to lack, to be missing, or not to have enough of something.

So Jeg mangler en ren skjorte means something like:

• I don’t have a clean shirt
• I’m missing a clean shirt
• I lack a clean shirt

A learner might expect Jeg har brug for en ren skjorte because that means I need a clean shirt. That is also possible, but the nuance is a little different:

• Jeg mangler en ren skjorte = I don’t currently have one available
• Jeg har brug for en ren skjorte = I need one, without necessarily focusing on whether I already have one

In this sentence, mangler sounds very natural because the speaker is talking about not having the necessary item.

Because skjorte is a common gender noun in Danish.

Danish nouns have two grammatical genders:

• common gender → uses en
• neuter gender → uses et

So:

• en skjorte = a shirt

You simply have to learn the gender with each noun. Unfortunately, it is not always predictable from meaning.

The form of the adjective depends on the gender and form of the noun.

Here we have:

• en skjorte = common gender singular, indefinite
• so the adjective takes the base form

That gives:

• en ren skjorte = a clean shirt

Compare:

• en ren skjorte = common gender singular
• et rent bord = neuter singular
• rene skjorter = plural
• den rene skjorte = definite

So ren is correct because skjorte is common gender and indefinite singular.

Mødet is the definite form of møde:

• et møde = a meeting
• mødet = the meeting

In the sentence, the speaker is referring to a specific meeting, probably one both speaker and listener understand from context:

• til mødet i morgen = for the meeting tomorrow

English often uses the as a separate word, but Danish usually adds the definiteness to the end of the noun:

• møde → mødet
• skjorte → skjorten

Here til means something like for.

So:

• en ren skjorte til mødet i morgen = a clean shirt for the meeting tomorrow

Danish til has several common meanings, including:

• to
• for
• until
• sometimes at in certain expressions

In this sentence it does not mainly express movement. It expresses purpose/relevance:

• the shirt is needed for the meeting

In standard Danish, i morgen is normally written as two words when it means tomorrow.

So:

• i morgen = tomorrow

Historically and in some informal writing, you may sometimes see imorgen, but i morgen is the standard spelling learners should use.

You can think of it as a fixed time expression.

Because time expressions are very often placed late in the sentence in Danish, especially after the noun phrase they belong to.

Here:

• til mødet i morgen = for the meeting tomorrow

The phrase i morgen modifies mødet, telling us which meeting.

This placement is very natural. Danish is fairly flexible with adverbials, but this version is straightforward and idiomatic.

You could also move time information earlier for emphasis, but the given order is the most neutral.

Most naturally, it describes the meeting.

So the sentence is understood as:

• I’m missing a clean shirt for the meeting that is tomorrow

That is because i morgen comes right after mødet, and Danish often lets a time expression follow the noun it modifies.

In real life, listeners could also understand the broader idea that the speaker needs the shirt by tomorrow, but grammatically the most immediate connection is with mødet.

You could, but it sounds much less natural in this context.

• en ren skjorte is the normal way to say a clean shirt
• en skjorte, der er ren literally means a shirt that is clean

The longer version is more explicit and usually only used if you want contrast or emphasis.

So for everyday Danish:

• en ren skjorte is the natural choice

Yes, that is a very close literal translation.

Word by word:

• Jeg = I
• mangler = lack / am missing
• en = a
• ren = clean
• skjorte = shirt
• til = for
• mødet = the meeting
• i morgen = tomorrow

A more natural English translation would often be:

• I don’t have a clean shirt for the meeting tomorrow
• I need a clean shirt for tomorrow’s meeting

So the literal translation works, but the most idiomatic English version may be slightly different.

Then both the noun and the adjective would change.

Indefinite:

• en ren skjorte = a clean shirt

Definite:

• den rene skjorte = the clean shirt

Notice what happens:

1. You add den before the noun
2. The adjective gets the -e ending
3. The noun becomes definite: skjorte → skjorten

However, when there is an adjective, Danish usually uses the double definite pattern:

• den rene skjorte

not just

• rene skjorten

So if the sentence were about the clean shirt, you would need that full structure.