Prelit ću ti čaj u šalicu čim uzmem čistu salvetu.

This is the future tense of preliti.

In standard Croatian, when the future auxiliary ću comes after an infinitive ending in -ti, the final -i of the infinitive is usually dropped:

• preliti → prelit ću
• pisati → pisat ću
• raditi → radit ću

So prelit ću means I will pour.

If the auxiliary comes before the infinitive, the full infinitive is kept:

• Ja ću preliti čaj...

Because ću is a clitic: an unstressed little word that normally does not stand at the very beginning of a clause in neutral standard Croatian.

So instead of:

• Ću preliti... ❌

Croatian prefers:

• Prelit ću...
• Ja ću preliti...

In your sentence, prelit is placed first, and the clitic ću comes right after it.

Ti here is the dative clitic meaning to you or for you.

So:

• Prelit ću ti čaj... = I’ll pour you tea... / I’ll pour the tea into a cup for you...

This is very natural in Croatian. English often says I’ll pour you some tea, while Croatian typically shows the recipient with the dative:

• ti = to/for you

Also, this ti is informal singular. If you were speaking formally or to more than one person, you would use vam instead.

After words like čim (as soon as), Croatian normally uses the present tense to talk about a future event.

So:

• čim uzmem čistu salvetu = as soon as I take a clean napkin

Even though the action is in the future, Croatian does not usually use ću there.

This is very common after conjunctions such as:

• kad
• čim
• ako
• dok
  depending on the meaning.

Because after čim, Croatian normally uses the present form, not the future with ću.

So the natural form is:

• čim uzmem ✅

not:

• čim ću uzeti ❌

This is one of those places where Croatian works differently from English. English says as soon as I take too, so in this case the logic is actually quite similar.

Both are in the accusative singular, which is why they have -u.

Their dictionary forms are:

• šalica = cup
• salveta = napkin
• čista = clean

In the sentence they become:

• u šalicu = into a cup / into the cup
• čistu salvetu = a clean napkin / the clean napkin

Why accusative?

• šalicu is accusative because the tea is being poured into the cup
• salvetu is accusative because it is the direct object of uzmem (I take)

The adjective must match the noun, so:

• čista salveta → nominative
• čistu salvetu → accusative

Čaj is also in the accusative, but for many masculine inanimate nouns, the accusative singular looks exactly like the nominative singular.

So:

• čaj = nominative
• čaj = accusative

That is why you do not see a visible change.

Because Croatian distinguishes between:

• u + accusative = movement into
• u + locative = location in

So:

• u šalicu = into the cup
• u šalici = in the cup

Here the tea is moving from one place to another, so u šalicu is correct.

Because the sentence describes single completed actions:

• one act of pouring
• one act of taking a napkin

Croatian uses perfective verbs very often when talking about a future action seen as a complete event.

Here:

• preliti = to pour over / pour across / pour into as a completed action
• uzmem is from uzeti = to take, also completed

If you wanted to stress an ongoing or repeated action, you would more likely use an imperfective verb instead.

Čim means as soon as and suggests an immediate sequence.

So the sense is:

• first I take a clean napkin
• immediately after that, I pour the tea into the cup

If you used kad, it would mean when, which is more neutral and does not stress the immediacy as strongly.

So:

• čim = as soon as
• kad = when

Yes, Croatian word order is fairly flexible, but not completely free.

For example, these are possible:

• Čim uzmem čistu salvetu, prelit ću ti čaj u šalicu.
• Ja ću ti preliti čaj u šalicu čim uzmem čistu salvetu.
• Čaj ću ti preliti u šalicu čim uzmem čistu salvetu.

The meaning stays very similar, but the focus changes slightly.

However, the clitics such as ću and ti still follow Croatian clitic-placement rules, so not every order is equally natural.

Because Croatian has no articles.

So:

• čaj can mean tea or the tea
• šalicu can mean a cup or the cup
• čistu salvetu can mean a clean napkin or the clean napkin

Which one is meant depends on the context.

This is one of the biggest differences from English: Croatian usually leaves definiteness unstated unless something else in the sentence makes it clear.

Yes. You could say:

• Prelit ću čaj u šalicu čim uzmem čistu salvetu.

That would simply remove the idea of to/for you.

So the version with ti includes a recipient or beneficiary, while the version without it is more general.

In other words:

• Prelit ću ti čaj... = I’ll pour you tea...
• Prelit ću čaj... = I’ll pour the tea...