Zaparkoval jsem vozidlo bez povolení.

This is how the Czech past tense is normally formed:

• zaparkoval = the past participle of the verb
• jsem = the auxiliary am/have used with I

So:

• zaparkoval jsem = I parked

A useful way to think of it is:

• zaparkovat = to park / to park completely
• zaparkoval jsem = I parked

The ending on zaparkoval also shows gender:

• zaparkoval jsem = said by a man
• zaparkovala jsem = said by a woman

So if a female speaker says this sentence, it would be:

• Zaparkovala jsem vozidlo bez povolení.

In Czech, short auxiliary words like jsem often go in the second position of the sentence or clause. This is a common Czech word-order rule for clitics.

So the neutral order is:

• Zaparkoval jsem vozidlo bez povolení.

Literally, Czech prefers:

• first element: Zaparkoval
• second-position clitic: jsem

You can also say:

• Já jsem zaparkoval vozidlo bez povolení.

That sounds more emphatic because já adds stress to I.

So:

• Zaparkoval jsem... = neutral, normal
• Já jsem zaparkoval... = more emphasis on I

This is about aspect, which is very important in Czech.

• zaparkovat = perfective
• parkovat = imperfective

In this sentence:

• Zaparkoval jsem vozidlo... means the action was completed: I parked the vehicle
• Parkoval jsem vozidlo... would sound different and is less natural here; it suggests the action as a process, repeated activity, or background action

So the perfective verb zaparkovat is the right choice when you mean a completed event.

Compare:

• Zaparkoval jsem auto. = I parked the car.
• Parkoval jsem tam často. = I used to park there often.

Vozidlo means vehicle and is more formal or legal-sounding than auto.

So:

• vozidlo = vehicle
• auto = car

This sentence sounds like something from:

• a police report
• an official notice
• legal language
• parking regulations

That is why vozidlo fits well here.

If you said:

• Zaparkoval jsem auto bez povolení.

that would still be correct, but it sounds more everyday and less official.

Vozidlo is in the accusative singular, because it is the direct object of the verb zaparkovat.

You parked what?

• vozidlo

For many neuter nouns in Czech, the nominative and accusative singular look the same.

So:

• nominative: vozidlo
• accusative: vozidlo

That is why the form does not change here.

The preposition bez always takes the genitive case.

So:

• bez = without
• bez + genitive

Here:

• povolení = permission / permit
• after bez, it must be genitive

The interesting part is that povolení looks the same in both nominative and genitive singular, because it is a neuter noun of this type.

So:

• nominative: povolení
• genitive: povolení

Even though the form does not change, the case is still genitive because bez requires it.

It can mean either, depending on context.

In this sentence, bez povolení could mean:

• without permission
• without a permit

Because the sentence sounds formal, many learners will naturally feel a legal or official nuance here. So permit is often a very good fit in context, especially with parking.

Examples:

• bez povolení vstup zakázán = no प्रवेश without permission / entry forbidden without authorization
• parkování bez povolení = parking without a permit

So the exact English word depends on the situation, but the Czech is fine either way.

Czech does not have articles like English a/an and the.

So:

• vozidlo can mean a vehicle or the vehicle
• povolení can mean permission, a permit, or the permit

The exact meaning comes from context.

That means:

• Zaparkoval jsem vozidlo bez povolení.

could be understood as:

• I parked a vehicle without permission
• I parked the vehicle without a permit

Czech simply does not need articles to make a grammatical sentence.

Yes, Czech word order is flexible, but different orders change the emphasis.

The neutral version is:

• Zaparkoval jsem vozidlo bez povolení.

Other possible orders include:

• Vozidlo jsem zaparkoval bez povolení.
  Emphasizes vozidlo
• Bez povolení jsem zaparkoval vozidlo.
  Emphasizes without permission
• Já jsem zaparkoval vozidlo bez povolení.
  Emphasizes I

However, you still need to respect the usual placement of short words like jsem, which tends to stay in second position.

So yes, the order can change, but not randomly.

The ending -l in the past form points to masculine singular in this sentence.

Compare:

• zaparkoval jsem = I parked
  said by a man
• zaparkovala jsem = I parked
  said by a woman
• zaparkovalo = it parked
  neuter subject
• zaparkovali jsme = we parked
  masculine animate/mixed group
• zaparkovaly jsme = we parked
  all-female group

In the first-person singular past tense, Czech still marks the speaker’s gender in the participle. That is something English does not do, so it often stands out to learners.

A simple approximate pronunciation is:

• Zaparkoval jsem vozidlo bez povolení
• za-PAR-ko-val syem VO-zi-dlo bez po-vo-LE-nyi

A few helpful points:

• Czech stress is usually on the first syllable of each word
• jsem is pronounced roughly like syem
• z in bez is pronounced as z
• í is a long vowel
• ň in povolení is a soft ny sound

So povolení sounds approximately like:

• po-vo-le-nyí

Not perfect English spelling, of course, but that should help you say it more naturally.