Om du kommer tidligt eller sent, kan du stadig hjælpe mig med at fjerne ukrudtet i haven.

Yes, om often means about, but here it is a conjunction meaning if or whether.

In this sentence, Om du kommer tidligt eller sent means something like:

• Whether you come early or late
• If you come early or late

So this is not the about meaning of om.

This is a very common Danish word order pattern.

• In the subordinate clause: Om du kommer tidligt eller sent

  • the word order is normal: subject + verb
  • so: du kommer

• In the main clause: kan du stadig hjælpe mig ...

  • Danish is a V2 language, which means the finite verb usually comes in second position in a main clause.
  • Since the whole Om du kommer tidligt eller sent clause comes first, the main clause must begin with the verb:
  • kan du ...

So the structure is:

• [Subordinate clause] + [finite verb] + [subject] + ...

That is why it is kan du, not du kan.

In this sentence, kommer is best understood as arrive or show up.

So du kommer tidligt eller sent means:

• you arrive early or late
• you come early or late

English often uses both, but in context arrive may sound more natural.

Here, tidligt and sent are adverbs, meaning early and late.

They come from the adjectives:

• tidlig = early
• sen = late

When adjectives are used adverbially in Danish, they often take -t:

• tidlig → tidligt
• sen → sent

So:

• komme tidligt = come/arrive early
• komme sent = come/arrive late

Stadig means still.

In this sentence, it gives the idea:

• you can still help me
• you can help me anyway, even if you are early or late

So stadig shows that the possibility remains true despite the condition in the first clause.

In Danish main clauses, words like stadig, ikke, altid, and other sentence adverbs often come after the subject.

So in:

• kan du stadig hjælpe mig

the order is:

• kan = finite verb
• du = subject
• stadig = adverb

This is very typical Danish word order.

In Danish, the natural construction is usually:

• hjælpe nogen med at gøre noget

So:

• hjælpe mig med at fjerne ukrudtet
• literally: help me with removing the weeds

This is the standard way to say help me remove the weeds.

Hjælpe mig at fjerne is generally not the normal choice in modern Danish.

Here at is the infinitive marker, like English to.

So:

• at fjerne = to remove

In the phrase:

• hjælpe mig med at fjerne

it means:

• help me with removing
• or more naturally: help me to remove

Ukrudt means weed or weeds as a mass/collective noun.

Ukrudtet is the definite form:

• ukrudt = weed / weeds
• ukrudtet = the weed / the weeds

In this sentence, ukrudtet means the specific weeds in that garden, so the definite form is used.

Also, ukrudt is a neuter noun, so the definite ending is -et.

I haven means in the garden.

• have = garden
• haven = the garden

The preposition i is used because you are thinking of being inside that space or area.

So:

• i haven = in the garden

It sets up a condition or alternative, similar to:

• Whether you come early or late
• No matter if you come early or late

It tells us that the second part is true in either case:

• kan du stadig hjælpe mig ...
• you can still help me ...

So the overall meaning is that the exact arrival time does not change the fact that the person can help.

Because Om du kommer tidligt eller sent is a subordinate clause placed before the main clause.

The comma separates:

• the introductory subordinate clause from
• the main clause

So:

• Om du kommer tidligt eller sent, = subordinate clause
• kan du stadig hjælpe mig ... = main clause

This kind of comma is very common in Danish writing.