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Learn Hardcore Serbian: Glavno pravilo je važno. - The main rule is important.

Hardcore Serbian
/Hosting a board-game night
/Glavno pravilo je važno.

Glavno pravilo je važno.

Word

Glavno pravilo je važno.

Meaning

The main rule is important.

Part of speech

sentence

Pronunciation

Course

Hardcore Serbian

Lesson

Hosting a board-game night

Breakdown of Glavno pravilo je važno.

Questions & Answers about Glavno pravilo je važno.

Why do both glavno and važno end in -o?

Because pravilo is a neuter singular noun, and adjectives must agree with the noun they describe.

glavno pravilo = adjective + noun
pravilo je važno = noun + to be
- predicate adjective

In both places, the adjective is matching pravilo, so it takes the neuter singular form:

masculine: glavan / važan or more standard adjective forms depending on the word
feminine: glavna / važna
neuter: glavno / važno

So the -o ending here tells you the adjectives are agreeing with a neuter singular noun.

What is the role of je in this sentence?

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

So the structure is:

Glavno pravilo = the main rule
je = is
važno = important

This is the normal Serbian equivalent of an English is sentence. Unlike in some other Slavic languages, Serbian normally keeps the present-tense form of to be in standard sentences like this.

Why is glavno before pravilo, but važno comes after je?

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They are doing two different jobs.

glavno is an attributive adjective: it directly modifies the noun pravilo
- glavno pravilo = main rule
važno is a predicate adjective: it comes after je and tells you something about the subject
- pravilo je važno = the rule is important

So the sentence has this structure:

[adjective + noun] + je + [predicate adjective]

That is very normal in Serbian.

Is pravilo always neuter?

Yes. Pravilo is a neuter noun, and its dictionary form is nominative singular.

A useful clue is that many Serbian nouns ending in -o or -e are neuter, including:

pravilo = rule
selo = village
more = sea

Because pravilo is neuter, adjectives with it must also be in neuter form:

glavno pravilo
važno pravilo
ovo pravilo

Why is there no word for the in Serbian?

Serbian does not have articles like English a/an/the.

So pravilo can mean:

a rule
the rule

and the exact meaning depends on context.

In Glavno pravilo je važno, English often uses the: The main rule is important, but Serbian does not need a separate word for that.

Could the word order be changed?

Yes, Serbian word order is more flexible than English, but the most neutral version here is:

Glavno pravilo je važno.

You might also hear:

Važno je glavno pravilo.

But that version sounds more marked and puts stronger focus on važno or changes the information structure.

For a learner, the safest choice is the original order: Glavno pravilo je važno.

Could I say Pravilo je glavno instead?

You could, but it would mean something different.

Glavno pravilo je važno. = The main rule is important.
Pravilo je glavno. = The rule is the main one / The rule is primary.

In the original sentence, glavno belongs with pravilo as part of the noun phrase. In Pravilo je glavno, glavno becomes the predicate adjective, so the meaning shifts.

How would I negate this sentence?

You negate je by using nije:

Glavno pravilo nije važno.

That means The main rule is not important.

This is a very common pattern in Serbian:

On je ovde. → On nije ovde.
Pravilo je tačno. → Pravilo nije tačno.

Is važno describing the noun directly, or the whole statement about the noun?

Grammatically, važno is describing the subject glavno pravilo, but it does so through the verb je.

So:

glavno directly modifies pravilo
važno says something about glavno pravilo as a whole

That is why važno is called a predicate adjective.

A simple way to see it:

glavno pravilo = one unit
je važno = what is being said about that unit

How do I know this is singular and not plural?

Several words show that it is singular:

pravilo is singular
je is singular (is)
glavno is singular neuter
važno is singular neuter

If it were plural, you would get:

Glavna pravila su važna. = The main rules are important.

Notice the changes:

pravilo → pravila
je → su
glavno → glavna
važno → važna

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