Adresa za dostavu je pogrešna.

• adresa = address; this is the subject of the sentence and is in the nominative singular
• za dostavu = for delivery; this is a prepositional phrase modifying adresa
• je = is; the 3rd person singular present tense of biti (to be)
• pogrešna = wrong / incorrect; this is a predicate adjective describing adresa

So the structure is basically:

[subject] + [to be] + [adjective]

= Adresa ... je pogrešna

Serbian does not have articles like English a and the.

So adresa can mean:

• an address
• the address

Which one is meant depends on context. In this sentence, English usually translates it as The delivery address is wrong, but Serbian does not need a separate word for the.

The preposition za often takes the accusative case when it means for in the sense of intended purpose.

The noun is:

• dostava = delivery

Its accusative singular form is:

• dostavu

So:

• za dostavu = for delivery

This is a very common Serbian pattern:

• čaša za vodu = a glass for water
• torba za laptop = a bag for a laptop
• adresa za dostavu = address for delivery

Because it agrees with adresa, which is a feminine singular noun.

In Serbian, adjectives must agree with the noun in:

• gender
• number
• case

So you get:

• pogrešan for masculine singular
• pogrešna for feminine singular
• pogrešno for neuter singular

Since adresa is feminine, the correct form is pogrešna.

Je is the present tense form of to be: is.

In a normal standard sentence like this, you generally keep it:

• Adresa za dostavu je pogrešna.

Omitting je would sound incomplete in ordinary speech. You may sometimes see the verb omitted in:

• headlines
• notes
• very informal fragments

But as a full sentence for learners, je should definitely be there.

The neutral, most natural order is:

Adresa za dostavu je pogrešna.

But Serbian word order is more flexible than English, so you can change it for emphasis. For example:

• Pogrešna je adresa za dostavu.
  This emphasizes wrong

• Adresa je pogrešna za dostavu.
  This is less natural if you mean the delivery address is wrong

In most everyday contexts, the original sentence is the safest and most natural choice.

A rough pronunciation guide:

• adresa ≈ ah-DRE-sa
• za ≈ zah
• dostavu ≈ do-STAH-voo
• je ≈ yeh
• pogrešna ≈ po-GRESH-na

A few useful sound notes:

• š sounds like sh in shoe
• j sounds like y in yes
• Serbian vowels are usually clear and pure, not reduced like many English vowels

So pogrešna has the sh sound in the middle.

Yes, sometimes, but pogrešna is the more common everyday choice here.

• pogrešna = wrong, incorrect, mistaken
• netačna = inaccurate, incorrect, not exact

For an address, Serbian speakers very naturally say:

• Adresa je pogrešna.

Netačna is possible, but it can sound a bit more formal or more focused on factual inaccuracy.

Yes:

Адреса за доставу је погрешна.

Serbian is written in both:

• Latin: Adresa za dostavu je pogrešna.
• Cyrillic: Адреса за доставу је погрешна.

Both are standard.

You would change both the noun and the adjective to plural:

• Adrese za dostavu su pogrešne.

Changes:

• adresa → adrese = addresses
• je → su = are
• pogrešna → pogrešne = wrong

So:

• Adresa za dostavu je pogrešna. = The delivery address is wrong.
• Adrese za dostavu su pogrešne. = The delivery addresses are wrong.