Brojim do deset.

Brojim is the 1st person singular present tense of the verb brojiti, which means to count.

So:

• ja brojim = I count
• In this sentence, the subject ja is omitted, because Croatian usually leaves out subject pronouns when the verb ending already shows who is doing the action.

The ending -im tells you this means I count.

Croatian often drops personal pronouns like ja (I) when they are not needed for clarity.

That is because the verb form already tells you the subject:

• brojim = I count
• brojiš = you count
• broji = he/she/it counts

So Brojim do deset. is completely natural and means I count to ten.

If you say Ja brojim do deset, that is also correct, but it sounds more emphatic, like I am the one counting to ten.

Here do means up to or until.

In Brojim do deset, it shows the endpoint of the counting:

• do deset = up to ten / to ten

This is a very common use of do in Croatian.

For example:

• do sutra = until tomorrow
• do kraja = until the end
• do pet = until five / up to five

So in this sentence, do introduces the limit you are counting toward.

After the preposition do, Croatian normally uses the genitive case.

The word deset is one of those numerals whose form often stays the same here, so:

• do deset = to ten / up to ten

Even though do requires genitive, the form of deset does not visibly change in this sentence.

This can feel strange to English speakers because you expect a clear ending change, but with some numbers, the case form is not obviously different.

Yes. Croatian present tense often covers both:

• I count to ten
• I am counting to ten

So Brojim do deset can mean either, depending on context.

Croatian does not have a separate progressive form like English I am counting. The simple present usually does the job.

A simple pronunciation guide is:

BRO-yim do DE-set

A bit more precisely:

• brojim: the j sounds like English y, so it is roughly broyim
• do: like do in English, but shorter and cleaner
• deset: DE-set, with the stress usually on the first syllable

A more phonetic approximation:

• bro-yim do de-set

Important details:

• Croatian pronunciation is usually quite regular
• j is pronounced like English y
• each vowel is pronounced clearly

The dictionary form is brojiti.

This is the infinitive, meaning to count.

So the relationship is:

• brojiti = to count
• brojim = I count

If you are learning verbs, it helps to remember the pair:

• infinitive: brojiti
• 1st person singular present: brojim

Usually, if you mean I count to ten, you should say Brojim do deset.

Without do, Brojim deset would not normally express the same idea. It would sound incomplete or unnatural in standard Croatian for this meaning.

The preposition do is important because it marks the endpoint of the counting.

So:

• Brojim do deset. = correct for I count to ten
• Brojim deset. = generally not the normal way to say that

Yes. Brojim do deset can mean either:

• I count to ten as a general/habitual action
• I am counting to ten right now

The exact meaning depends on context.

For example:

• If someone asks what you do in a game, Brojim do deset could mean I count to ten.
• If someone asks what you are doing right now, Brojim do deset could mean I’m counting to ten.

Croatian present tense is flexible in this way.

Brojim do deset is the most neutral and natural order.

Croatian word order is fairly flexible, so other orders may be possible in special contexts, but they usually add emphasis or sound less neutral.

For a learner, the safest version is:

• Brojim do deset.

That is the standard, straightforward way to say it.