Hun har fridag på tirsdag, så hun skal ikke tidligt op.

Hun is the subject form of she. It is used because she is the person doing or being something in the sentence.

• Hun har fridag = She has a day off
• Hende corresponds to her, and it is used as an object, not as the subject.

So Hun har fridag is correct.

Fridag is a compound noun:

• fri = free / off
• dag = day

So fridag means a day off.

Danish often makes one noun out of ideas that English expresses with more than one word. That is why it is one word, not two.

In Danish, have a day off is a very natural way to express this idea:

• Hun har fridag = She has a day off

You can also hear expressions with fri, such as Hun har fri, but har fridag specifically emphasizes that the whole day is free.

So this is not a word-for-word match with English, but it is standard Danish.

For days of the week, Danish commonly uses på.

• på tirsdag = on Tuesday
• på mandag = on Monday
• på fredag = on Friday

So this matches English fairly closely:

• on Tuesday → på tirsdag

By itself, på tirsdag usually means on Tuesday, and the exact time depends on context.

It can refer to the upcoming Tuesday, but the listener often works that out from the situation.

If a speaker wants to be more explicit, they may add more context, but på tirsdag on its own is completely normal.

In Danish, commas are commonly used before a coordinating conjunction like så when it links two main clauses.

Here the sentence has two full clauses:

1. Hun har fridag på tirsdag
2. så hun skal ikke tidligt op

Each part could stand on its own, so the comma is natural and standard in written Danish.

Here så means so in the sense of therefore / as a result.

• Hun har fridag på tirsdag, så hun skal ikke tidligt op.
• She has Tuesday off, so she does not have to get up early.

So så connects cause and result.

This is because of normal Danish word order in a main clause.

In Danish main clauses, the finite verb usually comes early, and ikke normally comes after that finite verb.

So:

• hun skal ikke ... = correct
• hun ikke skal ... = not correct in a normal main clause like this

The finite verb here is skal, so ikke comes after it.

Skal often means must, have to, or sometimes am/is/are supposed to.

Here it means:

• hun skal ikke tidligt op = she does not have to get up early

Although skal is historically related to shall, in modern English the best translation here is usually has to or needs to, not shall.

Because tidligt is an adverb here, not an adjective.

• tidlig = early, as an adjective
• tidligt = early, as an adverb

Compare:

• et tidligt tog = an early train → adjective
• stå tidligt op = get up early → adverb

In the sentence, it describes how early she has to get up, so the adverb form tidligt is needed.

This is a very common Danish pattern.

The full expression is:

• stå op = to get up

But after a modal verb like skal, Danish often leaves out stå when the meaning is obvious:

• hun skal ikke op = literally she does not have to up, but naturally she does not have to get up
• hun skal ikke tidligt op = she does not have to get up early

So even though it may look incomplete to an English speaker, it is perfectly natural Danish.

Yes, you can, and learners often find that easier because it shows the full verb phrase.

• hun skal ikke stå tidligt op

That is understandable and grammatically possible. However, native speakers very often shorten it to:

• hun skal ikke tidligt op

The shorter version is especially common in everyday speech.

Because in the full expression stå tidligt op, the adverb naturally comes before op.

So:

• stå tidligt op = get up early

When stå is omitted after skal, the remaining order stays the same:

• skal ikke tidligt op

This may feel unusual to an English speaker, but it is the normal Danish order.

Yes. Danish often uses the present tense for something scheduled or understood as future from context.

• Hun har fridag på tirsdag literally looks like present tense
• but it naturally means She has Tuesday off

English does this too in some situations:

• She works on Tuesday
• She has the day off on Tuesday

So this is not strange in Danish.

Not in this sentence. With a modal verb like skal in a main clause, ikke normally comes right after the finite verb:

• hun skal ikke tidligt op = correct

Putting ikke later would sound wrong or unnatural here.

So a good rule to remember is:

• in a main clause, place ikke after the finite verb

No. In Danish, days of the week are normally written with a lowercase letter:

• mandag
• tirsdag
• onsdag

So tirsdag is correct, not Tirsdag, unless it begins a sentence.