Mit knæ er ikke længere hævet, men min skulder er stadig lidt øm.

Because Danish nouns have grammatical gender.

• knæ is a neuter noun: et knæ
• skulder is a common gender noun: en skulder

The possessive my changes to match the gender of the noun:

• min = for en-words
• mit = for et-words
• mine = for plural

So:

• min skulder = my shoulder
• mit knæ = my knee
• mine skuldre = my shoulders

Unfortunately, you usually have to learn the gender together with the noun.

It is best to memorize nouns with their article:

• et knæ
• en skulder

That way, choosing min/mit becomes much easier.

A good habit is to learn Danish nouns as full chunks, not as isolated words.

Because øm is used predicatively here, meaning it comes after er.

In Danish, adjectives are often handled differently depending on whether they are:

• attributive: placed before the noun
• predicative: placed after a verb like er, bliver, ser ud

Here it is predicative:

• min skulder er øm

Since skulder is a common-gender singular noun, the basic form øm is used.

Compare:

• en øm skulder = an aching/sore shoulder
• skulderen er øm = the shoulder is sore

If the subject were neuter, you would often see -t:

• mit ben er ømt

Hævet is the form used here as an adjective meaning swollen.

It comes from the verb at hæve, but in this sentence it functions like an adjective after er:

• knæet er hævet = the knee is swollen

This -et form is very common with past participles used adjectivally in Danish.

Compare:

• døren er lukket = the door is closed
• vinduet er åbnet = the window is opened/open

So hævet is the correct form here.

Yes, but in this case the form does not visibly change.

With many adjective-like participles, the singular predicative form is the same regardless of whether the noun is common gender or neuter:

• min arm er hævet
• mit knæ er hævet

In the plural, you would normally get hævede:

• mine knæ er hævede

So there is agreement, but it is not always obvious in the singular.

Because ikke længere is a fixed expression meaning no longer.

So:

• ikke længere = no longer

Examples:

• Jeg bor ikke længere i Aarhus. = I no longer live in Aarhus.
• Hun arbejder ikke længere her. = She no longer works here.

You should learn ikke længere as a chunk.

In this sentence, længere means something like any longer or no longer, depending on the full phrase.

• ikke længere = no longer / not anymore

On its own, længere can also mean longer in other contexts, but here the meaning is specifically tied to ikke.

So in this sentence, do not think of it as just the comparative of lang. Think of ikke længere as one expression.

Because stadig modifies the whole idea of the shoulder still being sore, while lidt modifies the degree of soreness.

So the structure is roughly:

• stadig = still
• lidt øm = a little sore

Together:

• er stadig lidt øm = is still a little sore

This word order is natural in Danish.

Lidt means a little, and øm means sore, tender, or aching depending on context.

So lidt øm means:

• a little sore
• slightly sore
• somewhat tender

It softens the statement. The speaker is not saying the shoulder is severely painful, only mildly sore.

Mostly, yes. Øm is very commonly used for physical soreness or tenderness, especially in muscles, joints, and body parts.

Examples:

• Jeg er øm i benene. = My legs are sore.
• Min nakke er øm. = My neck is sore.
• Det er ømt at røre ved. = It’s tender to the touch.

So in this sentence, øm is very natural for a shoulder.

Because men joins two full main clauses, and each clause normally has its own verb.

The sentence is:

• Mit knæ er ikke længere hævet
• men min skulder er stadig lidt øm

Each part is a complete clause, so repeating er is required.

This works like English:

• My knee is no longer swollen, but my shoulder is still a little sore.

Because men introduces another main clause, not a subordinate clause.

In Danish main clauses, the finite verb usually stays in second position:

• Min skulder er stadig lidt øm.

That remains true after men:

• ..., men min skulder er stadig lidt øm.

If this were a subordinate clause introduced by something like fordi, the word order could be different.

Yes, that is possible and understandable, but ikke længere is generally the most standard and natural order for no longer.

So the preferred version is:

• Mit knæ er ikke længere hævet

You may hear variants in speech, but for learners, ikke længere is the safest choice.

Here it is singular.

Danish knæ is one of those nouns whose singular and plural can look the same in the indefinite form:

• et knæ = a knee
• to knæ = two knees

You often understand the number from the determiner or context:

• mit knæ = singular
• mine knæ = plural

So mit tells you immediately that this is singular neuter.

You would use mine for both nouns, and the adjective forms may also change.

For example:

• Mine knæ er ikke længere hævede, men mine skuldre er stadig lidt ømme.

Notice:

• mit → mine
• min → mine
• hævet → hævede
• øm → ømme

That is a useful pattern to compare with the original sentence.

Knæ is pronounced roughly like the English word knee, but with Danish pronunciation.

A few points:

• the k is not pronounced
• the word is basically just the vowel sound plus the Danish vowel quality
• it is a very short word, so listening to native audio helps a lot

This silent k also appears in some other words of Germanic origin, just as in English.

Skulder is roughly pronounced like SKOOL-er, but with Danish vowel and r sounds, so it will not sound exactly like English.

Important learner notes:

• stress is on the first syllable: SKUL-der
• the u is not exactly like English oo
• the final -er often sounds weaker than English learners expect

As usual, it is best to imitate audio rather than rely too much on English spelling comparisons.