I dag lærer vi udtrykket "have det med at", som vi bruger, når noget ofte sker på samme måde.

Because Danish main clauses usually follow the V2 rule: the finite verb goes in the second position.

So:

• Vi lærer udtrykket i dag = normal order
• I dag lærer vi udtrykket = I dag is moved to the front, so lærer must come next

This is very common in Danish. If you begin with a time phrase, place, or another element, the verb still stays in second position.

Udtryk means expression.

Udtrykket means the expression.

The ending -et is the definite article for many neuter nouns in Danish. So:

• et udtryk = an expression
• udtrykket = the expression

This is different from English, because Danish often adds the definite article to the end of the noun instead of using a separate word like the.

In this expression, det is part of a fixed phrase. You usually should not try to translate it word-for-word.

Have det med at means something like:

• to tend to
• to have a habit of
• to often do something in a typical way

So in this phrase, det does not refer to a specific it in the normal sense. It is simply part of the idiomatic structure.

Example:

• Han har det med at komme for sent.
  = He tends to arrive late.

The basic pattern is:

[subject] + [form of have] + det med at + infinitive

Examples:

• Jeg har det med at glemme mine nøgler.
• Hun har det med at tale hurtigt.
• Vi havde det med at vente for længe.

So after at, you use the infinitive form of the verb.

This expression is often used for repeated or typical behavior, not usually for a single event.

Yes. The verb have changes as needed, but the rest of the expression stays the same.

Examples:

• Jeg har det med at ... = I tend to ...
• Han har det med at ... = He tends to ...
• Vi havde det med at ... = We used to tend to ...
• Hun vil have det med at ... = She will tend to ...

So the flexible part is mainly the verb have.

Here, som means that or which.

It introduces a relative clause:

• udtrykket = the expression
• som vi bruger = that we use

So:

udtrykket, som vi bruger ...
= the expression that we use ...

In everyday English, you might even leave out that, but in Danish som is very common in this kind of clause.

Because the sentence is describing a general fact.

• som vi bruger = that we use
• når noget ofte sker på samme måde = when something often happens in the same way

The speaker is not talking about one specific moment only. They are explaining how the expression is generally used, so the present tense is natural.

Here når is best understood as when in a general sense, often close to whenever.

In this sentence:

• når noget ofte sker på samme måde

the meaning is not one single future event. It means something like:

• when/whenever something often happens in the same way

So når is being used for a repeated or general situation.

Yes, it is completely idiomatic.

Literally:

• på = on
• samme = same
• måde = way

But in natural English, you would translate it as:

• in the same way

So Danish uses på samme måde where English uses in the same way.

Actually, in this sentence ofte comes after noget and before sker:

• når noget ofte sker på samme måde

This placement is natural because ofte modifies the verb phrase sker på samme måde.

Danish adverb placement can feel different from English, but this is a normal order in a subordinate clause.

Compare:

• Noget sker ofte på samme måde
• Når noget ofte sker på samme måde

Both are natural.

Yes. At lære normally means to learn.

So:

• I dag lærer vi udtrykket ...
  = Today we are learning the expression ...

If you wanted to say teach, Danish usually uses undervise or a different construction depending on context.

So this sentence is about the learners learning the expression, not someone teaching it in the grammar of the verb itself.

Because som vi bruger, når noget ofte sker på samme måde is a clause giving extra information about udtrykket.

Danish comma rules often place a comma before subordinate clauses such as relative clauses introduced by som.

So the comma helps separate:

• the main statement: I dag lærer vi udtrykket
• the explanatory clause: som vi bruger, når noget ofte sker på samme måde

This is standard written Danish.

Yes, people would say it, especially in teaching or explanatory contexts. It sounds natural and clear.

That said, it is a bit instructional in tone because it sounds like something a teacher, textbook, or lesson video would say:

• I dag lærer vi udtrykket ...

In everyday conversation, people might be less formal and say something shorter, but the sentence itself is perfectly natural Danish.