Min mor bliver gal, hvis jeg kommer for sent igen.

Both patterns exist in Danish, but they are used a bit differently.

• min mor = my mother
• moren min = also my mother, but often sounds a little more specific, emphasized, or colloquial depending on context and dialect

For a simple neutral sentence, min mor is the most natural choice.

Also notice that with min mor, Danish does not add a separate definite ending. You do not say min moren.

Because bliver means becomes / gets, while er means is.

• Min mor bliver gal = My mother gets angry
• Min mor er gal = My mother is angry or sometimes is crazy, depending on context

In this sentence, the idea is that she is not angry yet, but she will become angry if the condition happens. That is why bliver fits better.

Here gal means angry / mad.

Danish gal can also mean crazy, so context matters.

In Min mor bliver gal, it almost certainly means My mom gets mad.
That is a very common everyday use.

Danish often uses the present tense to talk about the future, especially in conditional sentences with hvis.

So:

• hvis jeg kommer for sent igen = if I come late again

Even though it refers to a future possibility, Danish normally keeps kommer in the present tense. Using vil komme here would usually sound less natural.

This is similar to English, which also says:

• If I come late again not usually
• If I will come late again

Because for sent is a fixed expression meaning too late / late in this kind of context.

• sent = late
• for sent = literally too late, but often just the normal way to say late after komme

So Danish says:

• komme for sent = to arrive late / be late

This is the standard expression. You should learn komme for sent as a chunk.

Hvis means if.

It introduces a condition:

• Min mor bliver gal = main result
• hvis jeg kommer for sent igen = condition

So the structure is:

• [result], hvis [condition]
• My mom gets mad, if I come late again

You can also put the hvis-clause first:

• Hvis jeg kommer for sent igen, bliver min mor gal.

That means the same thing, but the word order in the main clause changes after the fronted clause.

Because hvis introduces a subordinate clause, and subordinate clauses in Danish normally keep the subject before the verb.

So you get:

• hvis jeg kommer not
• hvis kommer jeg

This is an important difference from main clauses in Danish, where the verb is often in second position.

Compare:

• Main clause: Jeg kommer for sent igen.
• Subordinate clause: hvis jeg kommer for sent igen

Igen means again, and putting it near the end is very natural here:

• hvis jeg kommer for sent igen

It modifies the whole situation: you are late again.

That said, Danish word order can sometimes vary for emphasis. For example, igen can appear earlier in some sentences, but the version in your sentence is the most normal and neutral one.

Yes, you can, but it sounds a bit more marked or deliberate.

Compare:

• hvis jeg kommer for sent igen = the most neutral, everyday phrasing
• hvis jeg igen kommer for sent = puts a little more focus on again

So both are possible, but the original sentence is the most natural default choice for ordinary speech.

Yes, very common.

At blive gal is a very normal way to say that someone gets angry. It is everyday Danish.

Other similar expressions are:

• blive sur = get annoyed / get upset
• blive vred = get angry

These are close in meaning, but the tone can vary:

• sur often sounds like annoyed, grumpy, upset
• vred can sound more directly angry
• gal is very common in speech and often feels like mad/angry

Yes. Family words often appear without an article in certain patterns, especially with possessives.

For example:

• min mor
• min far
• min søster

That is completely normal.

But in other structures, you may see the definite form:

• moren = the mother
• faren = the father

So it depends on the structure, not just on the noun itself.

Because kommer is a finite verb, not an infinitive.

In this sentence, jeg kommer means I come / I am coming / I arrive, depending on context. Since it is the actual verb of the clause, it needs the present tense form kommer.

You would only use at komme when you need an infinitive, for example:

• Jeg prøver at komme til tiden. = I try to arrive on time.

But after hvis, you need a full clause with a subject and a finite verb:

• hvis jeg kommer for sent igen

It would become:

Hvis jeg kommer for sent igen, bliver min mor gal.

Notice what happens in the main clause:

• min mor bliver gal becomes bliver min mor gal

That is because Danish main clauses normally follow the verb-second rule. When the hvis-clause comes first, it takes the first position, so the verb bliver must come before the subject min mor in the main clause.

That word order change is very important in Danish.