Ne brini dok ne vidiš nalaz; možda je sve u redu.

The two ne’s do different jobs.

• Ne brini = Don’t worry. This is a negative command.
• dok ne vidiš nalaz = until you see the report/result.

In Croatian, dok ne is a very common way to say until. So even though English says until you see, Croatian normally says dok ne vidiš.

So this is not a logical “double negative.” It is just:

• one negative for the command,
• one negative as part of the until structure.

A very important contrast:

• dok vidiš can mean while/as long as you see
• dok ne vidiš means until you see

Yes. Brini is the 2nd person singular imperative of brinuti in the sense of to worry.

So:

• brini! = worry!
• ne brini! = don’t worry!

It is addressed to one person informally, like you singular.

If you were speaking to:

• more than one person, or
• one person formally,

you would say:

• Ne brinite.

Because Croatian often drops subject pronouns when they are already clear from the verb form.

Here the verbs already show that the sentence is addressed to you singular:

• brini = you worry / worry!
• vidiš = you see

So Croatian does not need to say ti.

You could add ti for emphasis, but normally it is omitted:

• Ti ne brini dok ne vidiš nalaz.

That sounds more emphatic, like You don’t worry until you see the result.

Because Croatian often uses the present tense after time words/conjunctions like kad, čim, dok, when talking about a future event.

So:

• dok ne vidiš nalaz literally looks like until you do not see the result
• but in real usage it means until you see the result

This is normal Croatian grammar. English does something similar in sentences like:

• Don’t call me until you get home.

Even though get is present, the meaning is future.

Nalaz is in the accusative singular because it is the direct object of vidiš (you see).

However, nalaz is a masculine inanimate noun, and for many masculine inanimate nouns, the nominative and accusative singular look the same.

So:

• nominative: nalaz
• accusative: nalaz

That is why there is no visible ending change here.

In everyday Croatian, especially in medical contexts, nalaz usually means a test result, medical report, finding, or exam/report result.

Depending on context, it could refer to:

• lab results,
• a scan report,
• a doctor’s written findings,
• or another medical document/result.

So in this sentence, nalaz is most likely the medical result/report someone is waiting for.

Because sve (everything) is grammatically treated as singular in Croatian.

So:

• sve je = everything is

not:

• sve su

Even though everything refers to many things in meaning, grammatically it behaves like a singular word.

U redu is a very common expression meaning:

• okay
• fine
• all right
• in order
• sometimes normal

So:

• možda je sve u redu = maybe everything is fine / maybe everything is okay

In this context, it suggests that the result may turn out to be normal or not problematic.

Yes, you can.

Croatian has two common ways to make a negative command:

• Ne brini.
• Nemoj brinuti.

Both can mean Don’t worry.

Very often:

• Ne brini sounds shorter and more direct.
• Nemoj + infinitive can sound a bit softer, more conversational, or more emphatic depending on tone.

So these are both natural:

• Ne brini dok ne vidiš nalaz.
• Nemoj brinuti dok ne vidiš nalaz.

Možda means maybe/perhaps.

In Croatian, it often appears near the beginning of the clause:

• Možda je sve u redu.

That is the most neutral and natural word order here.

Croatian word order is fairly flexible, but changing the position of možda can slightly change emphasis. For a learner, the safest pattern is:

• Možda + verb + rest of sentence

So here:

• Možda je sve u redu.

is the best default version to learn.