Det er overhovedet ikke svært at spørge hende, for hun er meget hjælpsom.

In Danish, det often works like English it in sentences such as It is easy to... or It is difficult to...

So Det er svært at... follows a very common pattern:

• Det er = It is
• svært = difficult
• at spørge hende = to ask her

The real action being talked about is at spørge hende, but Danish usually puts det first and moves the infinitive phrase later.

Svært is the -t form of the adjective svær.

Danish adjectives often change form depending on what they relate to. After det er, you very often get the neuter form:

• en svær opgave = a difficult task
• et svært spørgsmål = a difficult question
• det er svært = it is difficult

So in this sentence, svært is the correct form after det er.

Here, overhovedet strengthens the negative. In overhovedet ikke, it means something like:

• not at all
• really not
• absolutely not

So Det er overhovedet ikke svært is stronger than just Det er ikke svært.

Compare:

• Det er ikke svært = It is not difficult
• Det er overhovedet ikke svært = It is not difficult at all

Very often, yes. For learners, the safest thing is to notice overhovedet ikke as a common fixed combination.

It can appear in other uses, but in everyday learning, the most useful pattern is:

• ikke ... overhovedet
• overhovedet ikke

Both are related to the idea of at all.

In this sentence, overhovedet ikke is the natural emphatic wording.

Because Danish, like English, commonly uses an infinitive after adjectives such as easy, hard, important, possible, and so on.

Pattern:

• Det er svært at lære dansk = It is difficult to learn Danish
• Det er nemt at forstå = It is easy to understand
• Det er svært at spørge hende = It is difficult to ask her

So at spørge is just the infinitive, equivalent to English to ask.

Because hende is the object form, while hun is the subject form.

Compare:

• Hun er meget hjælpsom = She is very helpful
• Jeg spørger hende = I ask her

In the sentence at spørge hende, she is the person being asked, so Danish uses the object pronoun hende.

Here for means because or for, in the explanatory sense.

So this part:

• for hun er meget hjælpsom

means:

• because she is very helpful

This is a common learner point because for does not mean the English preposition for here. It is a conjunction introducing a reason.

Both can express a reason, but they are not used in exactly the same way.

A useful beginner-level distinction is:

• for = for / because, often sounding explanatory
• fordi = because, very common in everyday speech

An important grammar difference is word order:

• After for, Danish keeps main clause word order
• That is why you get hun er

So:

• ..., for hun er meget hjælpsom

is natural and correct.

Because for introduces a new main clause, not the kind of clause that changes the usual word order.

So the clause stays in normal subject-verb order:

• hun er meget hjælpsom

This is different from some other connectors that can affect clause structure more clearly. For learners, the key thing to remember is:

• after for: hun er
• not er hun

unless you are asking a question.

Because hjælpsom agrees differently from svært here.

With hun, the adjective stays in its basic form:

• Hun er hjælpsom = She is helpful

You would use hjælpsomt with a neuter singular noun or neuter context:

• et hjælpsomt svar = a helpful answer

So in this sentence:

• hun er meget hjælpsom is correct
• hun er meget hjælpsomt is not correct

Yes. Hjælpsom is a normal Danish adjective meaning helpful.

You can use it about a person who is willing to help, kind in a practical way, or easy to approach.

Examples:

• Han er meget hjælpsom = He is very helpful
• Personalet var hjælpsomt = The staff were helpful

It is a very useful everyday word.

Because for here connects two full clauses:

• Det er overhovedet ikke svært at spørge hende
• hun er meget hjælpsom

In standard written Danish, a comma is normally used before for when it links clauses like this.

So the comma helps show that the second part gives the reason for the first.

Yes. Danish can leave that unsaid if it is obvious from context or not important.

So at spørge hende can mean:

• to ask her
• to ask her something
• to ask her about it

The sentence is focusing on the fact that approaching her is easy, because she is helpful. The exact question does not need to be stated.