Ova veština je važna.

Word by word:

• ova = this
• veština = skill
• je = is
• važna = important

So the full sentence means This skill is important.

Because ova has to agree with veština.

In Serbian, this changes depending on the gender of the noun:

• ovaj = masculine
• ova = feminine
• ovo = neuter

Since veština is a feminine noun, the correct form is ova.

In Serbian, many nouns ending in -a are feminine, and veština is one of them.

So:

• veština = feminine noun
• that is why it takes ova
• and that is also why važna ends in -a

This is a very common agreement pattern in Serbian.

Because adjectives in Serbian must agree with the noun they describe in gender, number, and case.

Here, veština is:

• feminine
• singular
• nominative

So važan (important) has to become the feminine singular form:

• masculine: važan
• feminine: važna
• neuter: važno

That is why the sentence uses važna.

Je is the 3rd person singular present tense form of the verb biti (to be).

So:

• ja sam = I am
• ti si = you are
• on/ona/ono je = he/she/it is

In this sentence, je means is.

Because je is a clitic in Serbian. Clitics are short unstressed words that usually go in the second position of the sentence or clause.

Here, Ova veština acts as the first unit, and je comes right after it:

• Ova veština | je | važna

This word order is very normal and natural in Serbian.

In normal standard Serbian, no—you usually keep je in a sentence like this.

So:

• Ova veština je važna. = correct
• Ova veština važna. = not normal standard Serbian

Serbian normally uses the present tense of to be in this kind of sentence.

It is in the nominative singular.

Why nominative?

Because veština is the subject of the sentence: the sentence is saying something about this skill.

That is also why both ova and važna are in forms that match the nominative feminine singular.

Yes, Serbian word order is more flexible than English, but the emphasis changes.

For example:

• Ova veština je važna. = neutral, standard
• Važna je ova veština. = emphasizes important
• Veština je važna. = The skill is important
• Ova važna veština = this important skill (now the adjective is directly before the noun, not a predicate)

Even when word order changes, je still tends to stay in second position.

A rough pronunciation guide:

• veština ≈ VESH-tee-na
• važna ≈ VAHZH-na

Useful pronunciation points:

• š sounds like sh in shoe
• ž sounds like the s in measure
• j sounds like English y in yes

So the whole sentence is roughly:

Ova veština je važna ≈ OH-va VESH-tee-na ye VAHZH-na

In Serbian Cyrillic, it is:

Ова вештина је важна.

Serbian uses both Latin and Cyrillic, and both are standard. The meaning and grammar are exactly the same.