Hun halter stadig, fordi anklen gør ondt.

In Danish, the simple present is very often used where English would use is limping.

So:

• Hun halter = She limps / She is limping

You can sometimes express an ongoing action in other ways in Danish, but the normal, natural choice here is just halter.

At halte means to limp or to walk with difficulty because of pain or injury.

Examples:

• Han halter efter faldet. = He is limping after the fall.
• Hunden halter på det ene ben. = The dog is limping on one leg.

So in this sentence, Hun halter means she is walking with a limp.

Stadig means still.

So:

• Hun halter stadig = She is still limping

It shows that the situation is continuing.

A close alternative is stadigvæk, which is a bit fuller but often means the same thing:

• Hun halter stadigvæk.

Both are natural.

In a normal Danish main clause, the finite verb usually comes early, and adverbs like stadig often come after the verb.

So:

• Hun halter stadig.

That is the natural word order.

English also often does this:

• She is still limping

But the structure is not always identical between the two languages, so it is useful to learn halter stadig as a common pattern.

Fordi means because.

It introduces a clause that gives the reason:

• Hun halter stadig, fordi anklen gør ondt.
• She is still limping because her ankle hurts.

So the second part explains why she is limping.

This is a very common Danish pattern with body parts.

Danish often uses the definite form of the body part instead of a possessive like her or his, when it is already obvious whose body part is meant.

So:

• anklen = the ankle
• but in English we usually say her ankle

That is why:

• anklen gør ondt
  naturally means
• her ankle hurts

Other examples:

• Han løfter hånden. = He raises his hand.
• Hun har brækket armen. = She has broken her arm.

The base noun is:

• en ankel = an ankle

The definite singular is formed by adding -en:

• anklen = the ankle

So:

• en ankel
• anklen

This is very typical for common-gender nouns in Danish.

Gør ondt is a very common Danish expression meaning hurts or causes pain.

Literally:

• gør = does / makes
• ondt = painfully / bad in a pain-related sense

But as a whole, gør ondt should be learned as a set phrase:

• Det gør ondt. = It hurts.
• Min ryg gør ondt. = My back hurts.

So:

• anklen gør ondt = the ankle hurts

Ondt is related to ond, which often means bad, evil, or painful depending on context.

In the expression gøre ondt, ondt refers to pain.

Useful patterns:

• Det gør ondt. = It hurts.
• Hvor gør det ondt? = Where does it hurt?
• Jeg har ondt i knæet. = My knee hurts / I have pain in my knee.

So in this sentence, you do not translate ondt word-for-word by itself. The whole phrase gør ondt is what matters.

Yes, absolutely. That is also natural Danish.

Compare:

• anklen gør ondt = the ankle hurts
• hun har ondt i anklen = she has pain in her ankle / her ankle hurts

Both are correct and common. The original sentence is a bit more direct and compact, while har ondt i anklen is another very frequent way to talk about pain.

After fordi, Danish normally uses subordinate clause word order, which means the subject comes before the verb in the usual way:

• fordi anklen gør ondt

Breakdown:

• anklen = subject
• gør = verb
• ondt = part of the expression

This is normal and expected after fordi.

A learner may notice that Danish main clauses often have verb-second word order, but subordinate clauses introduced by words like fordi do not follow that same pattern in the same way.

You could say:

• Fordi anklen gør ondt, halter hun stadig.

Notice the inversion in the main clause after the opening subordinate clause:

• halter hun not
• hun halter

That is because Danish main clauses normally place the finite verb in the second position.

So both are correct:

• Hun halter stadig, fordi anklen gør ondt.
• Fordi anklen gør ondt, halter hun stadig.

These can be tricky for English speakers.

• gør contains the Danish vowel ø, which does not exist in standard English.
• anklen is roughly ANK-len, but the exact vowel quality is Danish.

A few tips:

• ø is somewhat like the vowel in French deux or German schön.
• The r in gør affects the vowel quality.
• In anklen, the second syllable is unstressed.

If you are practicing, it helps to learn these in full phrases:

• Det gør ondt
• anklen gør ondt

That often sounds more natural than practicing isolated words.

Yes, it is natural and idiomatic.

It sounds like normal spoken or written Danish and uses very common structures:

• simple present for an ongoing situation
• stadig for still
• fordi for because
• gør ondt for hurts
• definite body part (anklen) instead of her ankle

So it is a very useful model sentence for everyday Danish.