Jeg skriver en personlig besked til min søster.

Yes. In a basic Danish main clause, the usual order is:

• subject + verb + the rest

So here:

• Jeg = subject
• skriver = verb
• en personlig besked = direct object
• til min søster = prepositional phrase

This is the normal, neutral word order for a statement.

A useful thing to know is that Danish is a V2 language in main clauses, which means the finite verb usually comes in the second position. Since Jeg is first, skriver comes second.

It can mean both, depending on context.

In Danish, the present tense often covers both:

• I write
• I am writing

So Jeg skriver en personlig besked til min søster could mean either:

• a general present action, or
• something you are doing right now

If you really want to stress that something is happening right now, Danish can also use expressions like jeg er ved at skrive, but very often the simple present skriver is enough.

The infinitive is skrive.

So:

• at skrive = to write
• jeg skriver = I write / I am writing

This is a very common pattern in Danish:

• infinitive: often ends in -e
• present tense: often ends in -r

Example:

• skrive → skriver
• læse → læser
• købe → køber

Because besked is a common gender noun in Danish, not a neuter noun.

Danish nouns have two genders:

• common gender → takes en
• neuter → takes et

So:

• en besked
• not et besked

You usually have to learn the gender together with the noun, since it is not always predictable.

Because the noun besked is:

• common gender
• singular
• indefinite

In that situation, the adjective normally has its basic form, which here is personlig.

Compare:

• en personlig besked = common gender singular indefinite
• et personligt brev = neuter singular indefinite
• personlige beskeder = plural
• den personlige besked = definite

So the form of the adjective changes depending on the noun it describes.

Because in Danish, a possessive like min, din, hans, vores usually replaces the indefinite article.

So you say:

• min søster = my sister

not:

• en min søster

This is similar to English, where you say my sister, not a my sister.

Because til marks the person who receives the message.

Here:

• en personlig besked = the thing being written
• til min søster = the recipient

So til works like to in English.

You can think of it as:

• write a message
• write it to someone

Danish often uses til this way with messages, letters, emails, and similar things.

Yes, that is possible, but Jeg skriver en personlig besked til min søster is often the clearer and more natural choice for learners.

The version with til makes the roles very easy to see:

• what is being written: en personlig besked
• who receives it: min søster

Without til, Danish can sometimes sound more compact, but it may be less transparent for beginners.

Because søster is singular.

The possessive changes like this:

• min søster = my sister
• mine søstre = my sisters

So:

• min is used with singular nouns
• mine is used with plural nouns

That is why min søster is correct here.

Yes. It sounds natural and means a personal or private message.

Depending on context, Danish speakers might also say things like:

• en besked
• en privat besked
• en personlig meddelelse

But en personlig besked is perfectly normal and understandable.

A careful approximation is:

• Jeg ≈ yai
• skriver ≈ SKREE-ver or more softly SKRII-ver
• en ≈ a short en or often a reduced vowel sound
• personlig ≈ peh-SOHN-lee
• besked ≈ beh-SKETH or beh-SKEDH
• til ≈ til
• min ≈ meen
• søster ≈ SUR-sta with a Danish ø sound

A few pronunciation notes:

• jeg is often pronounced much shorter and softer than learners expect
• r in Danish is not like a strong English r
• d at the end of words is often softened
• ø is a vowel English does not really have, so it takes practice

If you want to sound natural, it is best to learn the whole sentence as a rhythm, not just word by word.