Taman kad zagladite teksturu, glina postane suha.

Taman kad means just when or right when. It often carries a feeling of frustratingly perfect timing, as if something happens at exactly the wrong moment.

So in this sentence, taman adds that sense of just at that very moment.

Kad and kada both mean when.

The difference is mainly style and register:

• kad is shorter and very common in everyday speech
• kada is a bit fuller and can sound slightly more formal or careful

In a sentence like this, kad is completely natural.

Here it is a present-tense form, not a command.

That can be confusing, because zagladite can also be the 2nd person plural imperative:

• Zagladite teksturu! = Smooth the texture!

But after kad, it is understood as a verb in a time clause:

• kad zagladite teksturu = when you smooth the texture

So the grammar of the sentence tells you it is not an instruction here.

Grammatically, zagladite is 2nd person plural.

That can mean:

• you all
• you in the polite singular sense
• you in a general, instructional sense

In a sentence like this, it most likely means a general you, the way English says when you smooth the texture in instructions or descriptions.

The verb zagladiti is a perfective verb. Perfective verbs present an action as a whole or as something that reaches a result.

Here that fits the idea well: the sentence is talking about the moment once the smoothing is done / as soon as you get it smooth.

A rough contrast would be:

• zaglađivati / zaglađujete = smoothing, in progress, repeated
• zagladiti / zagladite = smooth successfully, bring to a smooth state

So kad zagladite teksturu focuses on the action as a completed step.

Because teksturu is the accusative singular form.

The noun tekstura is feminine, and here it is the direct object of zagladite:

• nominative: tekstura
• accusative: teksturu

So:

• tekstura = the texture, as a subject
• zagladite teksturu = you smooth the texture

Postane is the 3rd person singular present form of the perfective verb postati.

It means becomes in the sense of comes to be / turns into.

Why not postaje?

• postaje is from the imperfective verb postajati
• postaje would suggest an ongoing process: is becoming
• postane presents the change as a single result: becomes / ends up becoming

So glina postane suha emphasizes the result: the clay reaches the state of being dry.

Suha agrees with glina.

• glina is feminine singular
• the adjective therefore also has to be feminine singular
• that form is suha

Compare:

• suh = masculine singular
• suha = feminine singular
• suho = neuter singular

Since glina is feminine, suha is the correct form.

This is very normal in Croatian.

Croatian often uses present forms in time clauses and in general statements about what happens whenever a situation occurs. With perfective verbs, the present form often refers to an event seen as completed within that sequence.

So:

• kad zagladite teksturu = when / once you smooth the texture
• glina postane suha = the clay becomes dry

This is not strange Croatian tense usage; it is exactly how such timing relationships are commonly expressed.

No, Croatian word order is fairly flexible.

This version:

• Taman kad zagladite teksturu, glina postane suha.

puts the time clause first, which sounds natural and emphasizes the timing.

You could also move things around, but the nuance changes slightly. The given order is good because it highlights the annoying sequence: just when you smooth the texture...

So the word order is not random, but it is not completely fixed either.

Because Taman kad zagladite teksturu is a subordinate clause, and it is followed by the main clause:

• subordinate clause: Taman kad zagladite teksturu
• main clause: glina postane suha

In Croatian, when a subordinate clause comes before the main clause, a comma is normally used to separate them.

Yes, it often adds a bit of emotional color.

Without taman, the sentence would simply state the timing:

• Kad zagladite teksturu, glina postane suha.

With taman, it sounds more like:

• just when you finally do that, this other thing happens

So taman often suggests inconvenience, irony, or bad luck, even if the sentence stays neutral in grammar.