Na obrascu prvo pišem svoje ime, a onda prezime.

Na obrascu means on the form.

Here, na is used with the locative case to express location, so obrazac changes to obrascu.

• nominative: obrazac = form
• locative: na obrascu = on the form

This is a very common pattern in Croatian:

• na stolu = on the table
• na papiru = on the paper
• na obrascu = on the form

So the learner should remember this as: na + location → often locative.

Prvo means first or first of all.

In this sentence, it tells you the order of actions:

• prvo pišem svoje ime = first I write my first name
• a onda prezime = and then my surname

It works like an adverb here, describing when / in what order the action happens.

You may also see related words:

• prvi = first (adjective, masculine)
• prva = first (feminine)
• prvo = first / firstly

Pišem is the 1st person singular present tense of pisati = to write.

So:

• pišem = I write / I am writing

In Croatian, the subject pronoun ja is often omitted because the verb ending already shows who is doing the action.

So:

• (ja) pišem = I write

That is why the sentence does not need ja.

Svoje is the reflexive possessive form, and Croatian often uses it when the subject owns the thing being talked about.

Here, the subject is I and the name also belongs to me, so svoje ime is very natural.

• pišem svoje ime = I write my own name

Croatian often prefers svoj when the possessor is the same as the subject.

Compare:

• Pišem svoje ime. = I am writing my own name.
• Pišem moje ime. = grammatically possible in some contexts, but usually less natural here

So for learners, a good rule is:

If the subject and the owner are the same, Croatian often uses svoj.

Svoje is a form of svoj.

It agrees with ime, which is:

• neuter
• singular
• here in the accusative (same form as nominative for many neuter nouns)

So:

• ime = name
• svoje ime = one’s own name / my own name

Some related forms of svoj are:

• svoj brat = one’s own brother
• svoja sestra = one’s own sister
• svoje ime = one’s own name

Because ime is the direct object of pišem, and here it is in the accusative singular. For this noun, the accusative form looks the same as the nominative.

So:

• nominative: ime
• accusative: ime

This is common with many neuter singular nouns in Croatian: nominative and accusative are often identical.

So even though the case has changed grammatically, the word itself does not visibly change here.

Because Croatian often omits repeated words when the meaning is obvious.

The full version would be:

• Na obrascu prvo pišem svoje ime, a onda pišem svoje prezime.

But that sounds repetitive. So Croatian naturally shortens it to:

• Na obrascu prvo pišem svoje ime, a onda prezime.

English does something similar:

• First I write my first name, and then my surname.

The verb pišem and even the possessive idea are understood from the first part.

A here is a conjunction, often meaning something like and, while, or and then, depending on context.

In this sentence:

• a onda = and then / and after that

It connects the two parts smoothly:

• prvo ... , a onda ... = first ..., and then ...

This pairing is very common in Croatian.

Compare:

• Prvo učim, a onda odmaram. = First I study, and then I rest.
• Prvo kava, a onda posao. = First coffee, then work.

So a is not always a strong but. Here it is just a natural connector between two steps.

In everyday Croatian, ime by itself usually means first name / given name when it is contrasted with prezime.

So in this sentence:

• ime = first name
• prezime = surname / last name

That is why the sentence means:

• first I write my first name, then my surname

If needed, Croatian can be more explicit:

• osobno ime = personal/given name
• ime i prezime = full name, literally name and surname

Yes. Prezime is also the object of the understood verb pišem, so it is also in the accusative singular.

Just like ime, it is a neuter noun, and its accusative singular looks the same as the nominative:

• nominative: prezime
• accusative: prezime

So grammatically it is accusative, even though the form does not change.

The given sentence has a very natural word order:

• Na obrascu prvo pišem svoje ime, a onda prezime.

Croatian word order is fairly flexible, but different orders change emphasis.

For example:

• Prvo na obrascu pišem svoje ime, a onda prezime.
  Slightly different focus, more emphasis on first.
• Svoje ime prvo pišem na obrascu, a onda prezime.
  Possible, but more marked and less neutral.

The original version sounds natural because it goes:

1. location: Na obrascu
2. sequence marker: prvo
3. verb: pišem
4. object: svoje ime
5. contrasting next step: a onda prezime

So a learner can treat the original as a very good standard model.

Croatian does not have articles like English a/an and the.

So where English says:

• on the form
• my name
• the surname

Croatian simply uses the noun and relies on context:

• na obrascu
• svoje ime
• prezime

This is normal and one of the big differences from English. Croatian expresses definiteness through context, word choice, and sentence structure rather than articles.

It can mean either, depending on context.

Croatian present tense often covers both:

• I write
• I am writing

In this sentence, because it describes what you do when filling out a form, English could translate it as either:

• On the form, I first write my first name, and then my surname.
• On the form, I am first writing my first name, and then my surname.

Usually the simpler English translation I write sounds best for a general explanation of procedure.

A rough pronunciation guide for an English speaker:

• obrascu ≈ oh-BRAHS-tsoo
• pišem ≈ PEE-shem
• prezime ≈ preh-ZEE-meh

A few helpful sound notes:

• š sounds like sh in shoe
• c usually sounds like ts in cats
• Croatian vowels are generally clear and short, without much reduction:
  • a as in father
  • e as in bet (but cleaner)
  • i as in machine
  • o as in for but shorter/purer
  • u as in rule

So pišem is definitely shem, not see-em.