Oluja može uništiti jedro.

• oluja = storm
• može = can / is able to / may
• uništiti = to destroy
• jedro = sail

So the structure is very straightforward: storm + can + destroy + sail.

Oluja is the subject of the sentence, so it is in the nominative singular.

A few useful details:

• it is a feminine noun
• its dictionary form is also oluja
• many feminine nouns ending in -a work like this

Here, oluja means a storm or the storm, depending on context, because Croatian does not use articles like a and the.

After modal verbs like moći (can), Croatian normally uses the infinitive.

So:

• može uništiti = can destroy

Not:

• može uništava ❌

The infinitive here is uništiti.

This is similar to English:

• can destroy not
• can destroys

This is a question of aspect, which is very important in Croatian.

• uništiti = perfective → to destroy completely, as a finished event
• uništavati = imperfective → to be destroying, to destroy repeatedly, to destroy over time

In this sentence, uništiti is natural because it means a storm can bring about the complete destruction of a sail.

So:

• Oluja može uništiti jedro. = A storm can destroy a sail.
• Oluja može uništavati jedra. would suggest repeated or ongoing destroying, more like A storm can damage/destroy sails over time or repeatedly.

Jedro is the direct object of the sentence, so it is in the accusative singular.

But jedro is a neuter noun, and for many neuter nouns, the nominative and accusative singular have the same form.

So:

• nominative: jedro
• accusative: jedro

That is why it does not visibly change.

Jedro is neuter.

A very common clue is the ending:

• many Croatian nouns ending in -o or -e are neuter

So:

• jedro = neuter singular noun

This matters because adjectives and some other words must agree with it:

• veliko jedro = a big sail

Here može most naturally means can in the sense of possibility or ability.

So:

• Oluja može uništiti jedro. = A storm can destroy a sail.

Depending on context, može can sometimes also feel like may / might, but in this sentence can is the clearest translation.

Croatian has no articles.

So oluja can mean:

• a storm
• the storm

And jedro can mean:

• a sail
• the sail

Context tells you which one is meant.

That is why one Croatian sentence can match several English versions:

• A storm can destroy a sail.
• The storm can destroy the sail.
• A storm can destroy the sail.

Yes. Croatian word order is more flexible than English, because cases show the grammatical roles.

The neutral, straightforward order is:

• Oluja može uništiti jedro.

But you could also say:

• Jedro može uništiti oluja.
• Oluja jedro može uništiti.

These versions shift the focus or emphasis, but the basic meaning stays the same.

English relies more heavily on word order, while Croatian can move things around more freely.

A rough guide for an English speaker:

• oluja ≈ oh-LOO-ya
• može ≈ MO-zheh
• uništiti ≈ oo-NEESH-tee-tee
• jedro ≈ YEH-dro

A few sound notes:

• j is pronounced like English y
• ž sounds like the s in measure
• š sounds like English sh

So:

• može has the ž sound
• uništiti has the š sound

The dictionary form is moći, meaning to be able to / can.

Može is the 3rd person singular present form:

• ja mogu = I can
• ti možeš = you can
• on/ona/ono može = he/she/it can

Since oluja is singular, we use može.

By itself, it most naturally sounds like a general statement:

• A storm can destroy a sail.

But depending on context, it could also refer to a specific situation:

• The storm can destroy the sail.

Croatian often leaves this kind of distinction to context, since there are no articles.

Yes, Croatian often has several possible verbs, but they may differ slightly in tone or usage.

• uništiti = destroy, ruin completely
• oštetiti = damage
• razoriti = devastate, wreck, destroy thoroughly

For a neutral sentence, uništiti works very well.

If you say:

• Oluja može oštetiti jedro. that means:
• A storm can damage the sail.

So the choice of verb changes how strong the result is.