Što se mene tiče, kupujemo dnevnu ulaznicu zbog predgrupe.

It means as far as I’m concerned or as for me.

It is a very common Croatian expression for giving your personal view. Literally, it is something like what concerns me, but in natural English you usually translate it as as far as I’m concerned.

So here it introduces the speaker’s opinion before the rest of the sentence.

Because the verb in this expression is ticati se, which takes the genitive case.

So:

• ja = I
• mi = to me
• mene = me, in the genitive/accusative form

With ticati se, Croatian says literally it concerns me, and me appears as mene.

That is why the fixed phrase is Što se mene tiče, not Što se ja tiče.

Se is part of the verb ticati se.

Many Croatian verbs are used with se, and you often have to learn them as a whole unit. In this case:

• ticati se = to concern, to have to do with

So se is not something optional here. You should think of ticati se as the full dictionary form of the verb.

Because the expression is built around što.

Grammatically, što is the subject of the verb, so the verb appears in third person singular:

• što se mene tiče = as far as I’m concerned

Even if that feels strange from an English point of view, this is a fixed and very common Croatian structure.

Because Croatian usually does not need subject pronouns when the verb ending already shows who the subject is.

Here:

• kupujemo = we buy / we are buying / we’re going to buy

The ending -mo already tells you the subject is we, so adding mi is usually unnecessary unless you want extra emphasis.

Croatian often uses the present tense for something that is happening now, is already decided, or is understood as the current plan.

So kupujemo can mean:

• we’re buying
• we buy
• sometimes we’re going to buy, depending on context

Also, kupujemo is the imperfective verb form, which fits an ongoing action, a process, or a practical decision in context. A future form such as kupit ćemo is also possible in some situations, but it would sound a bit more explicitly future-oriented.

Because it is the direct object of the verb kupujemo, so it must be in the accusative case.

The nominative form is:

• dnevna ulaznica = a day ticket / day pass

But after kupujemo:

• kupujemo dnevnu ulaznicu = we are buying a day ticket

Both words change to match the accusative feminine singular:

• dnevna → dnevnu
• ulaznica → ulaznicu

Ulaznica means ticket for entry, admission ticket, or simply ticket in contexts like concerts, festivals, cinemas, and events.

It comes from the idea of entry/access. In this sentence, dnevna ulaznica is a day ticket or day pass.

Zbog means because of or due to.

It always takes the genitive case. That is why the next noun is not in its basic dictionary form.

So:

• predgrupa = opening act
• zbog predgrupe = because of the opening act

This is a very useful rule to remember: zbog + genitive.

Here it is genitive singular because it follows zbog.

The basic form is:

• predgrupa = opening act / support band

After zbog, it becomes:

• zbog predgrupe = because of the opening act

A learner may notice that predgrupe can also look like a plural form in other contexts. That is true: the spelling can match other forms. But after zbog, you know it must be genitive, so here the meaning is singular.

Predgrupa is the band or performer that appears before the main act.

In natural English, this is usually:

• opening act
• support act
• supporting band

So in this sentence, the reason for buying the day ticket is the opening act.

No, Croatian word order is fairly flexible.

The given order is natural because it starts with the speaker’s opinion:

• Što se mene tiče, kupujemo dnevnu ulaznicu zbog predgrupe.

But other orders are possible, depending on what you want to emphasize. For example, you could move zbog predgrupe earlier if you want to stress the reason.

Even so, the original version sounds very normal and conversational.

Because Što se mene tiče functions as an introductory phrase or comment from the speaker.

It is similar to English expressions like:

• As far as I’m concerned, ...
• For my part, ...

Croatian often separates this kind of introductory element with a comma, just as English does.

Yes, in many everyday spoken varieties of Croatian and in neighboring standards, šta is common and natural.

However:

• što is the more standard form in formal Croatian
• šta is more colloquial or regional

So Što se mene tiče is the safest version to learn first, especially for standard written Croatian.