Můj průkaz je v peněžence.

Můj is the correct form because it agrees with průkaz, the noun being possessed.

In Czech, possessive words like můj (my) change form to match:

• gender
• number
• case

Here, průkaz is:

• masculine
• singular
• nominative (the subject of the sentence)

So the correct form is můj průkaz.

Compare:

• můj průkaz = my ID card / my pass
• moje peněženka = my wallet
• moje auto = my car

So the form depends on the noun after it, not on the speaker.

Průkaz is a general word for a card, pass, permit, or ID document proving something.

Depending on context, it can mean things like:

• ID card
• student card
• license
• membership card
• permit

So můj průkaz could mean my ID, my card, my pass, etc. The exact English word depends on the situation.

Because after v meaning in, Czech uses the locative case.

The basic dictionary form is:

• peněženka = wallet

But after v:

• v peněžence = in the wallet

So peněženka changes form because Czech marks grammatical relationships with endings.

This is very common:

• v domě = in the house
• v autě = in the car
• v škole = in the school

Here:

• peněženka → peněžence in the locative singular

Peněžence is in the locative singular.

The preposition v usually means in or inside, and with location it takes the locative:

• v peněžence = in the wallet

So in this sentence:

• Můj průkaz = subject, nominative
• je = is
• v peněžence = location phrase, with peněžence in the locative

Yes, je is necessary in a normal full sentence.

Czech usually does not omit the present tense of to be the way some other Slavic languages do.

So:

• Můj průkaz je v peněžence. = correct
• Můj průkaz v peněžence. = not a normal complete sentence

In casual speech, people may shorten things in conversation, but for standard grammar, je should be there.

Je is the 3rd person singular present form of být (to be).

So it means:

• he/she/it is

Here it matches průkaz, which is singular:

• Můj průkaz je... = My ID is...

Some present-tense forms of být are:

• jsem = I am
• jsi/jseš = you are
• je = he/she/it is
• jsme = we are
• jste = you are / you all are
• jsou = they are

Because Czech has no articles.

English uses:

• a
• an
• the

Czech usually does not.

So průkaz can mean:

• a card
• the card
• my card
• an ID
• the ID

The context tells you which English article makes sense.

In Můj průkaz je v peněžence, the possessive můj already helps specify it, so English naturally says my ID/card.

A rough English-friendly pronunciation is:

mooy PROO-kas yeh f pe-NYEH-zhen-tseh

A few important points:

• ů sounds like a long oo in food
  • průkaz ≈ PROO-kas
• ůj in můj is a diphthong, roughly like oo + y
  • můj ≈ mooy
• ž sounds like the s in measure
  • peněženka has that zh sound
• c in Czech is pronounced ts
  • so peněžence ends with -tseh
• j is pronounced like English y
  • je ≈ yeh

The base word is peněženka.

When it changes to the locative singular, the ending changes:

• peněženka → peněžence

This kind of change is common with feminine nouns ending in -ka.

Very roughly:

• -ka often changes to -ce in some case forms

For example:

• ruka → ruce
• matka → matce
• peněženka → peněžence

So this is not random; it is part of Czech declension patterns.

Yes. Czech word order is more flexible than English.

The neutral version is:

• Můj průkaz je v peněžence.

But you could also say:

• V peněžence je můj průkaz.
• Můj průkaz je v mojí peněžence.
• Průkaz mám v peněžence.

These can sound slightly different in emphasis:

• Můj průkaz je v peněžence. = neutral statement
• V peněžence je můj průkaz. = emphasis on where it is
• Průkaz mám v peněžence. = emphasis on I have my ID in the wallet

So the original sentence is the most straightforward, but not the only possible order.

Yes, but in this sentence it clearly means in or inside.

Common uses of v include:

• v Praze = in Prague
• v autě = in the car
• v pondělí = on Monday
• v létě = in summer

So v is often translated as in, but the exact English preposition depends on context.

Here:

• v peněžence = in the wallet

Yes, absolutely.

You can say:

• Můj průkaz je v peněžence.
• Můj průkaz je v mojí peněžence.

The second version explicitly says in my wallet.

Why is mojí used there? Because peněžence is:

• feminine
• singular
• locative

So the possessive pronoun also changes:

• moje peněženka = my wallet
• v mojí peněžence = in my wallet

The original sentence leaves my unstated for the wallet, because context may already make it obvious.

Yes.

In Czech, grammatical gender is not the same thing as biological sex. Objects also have grammatical gender.

Průkaz is a masculine inanimate noun.

That is why it takes forms like:

• můj průkaz

Even though an ID card is not alive, it still belongs to the masculine grammatical class.

This is very normal in Czech:

• stůl = table, masculine
• hrad = castle, masculine
• auto = car, neuter
• peněženka = wallet, feminine

From context.

Czech often uses broader nouns where English would choose a more specific word. So průkaz may need different translations depending on the situation.

For example:

• at school: maybe student ID
• on public transport: maybe pass
• at work: maybe badge
• in everyday conversation: maybe ID

So learners should not expect one perfect English equivalent every time. The Czech word is stable, but the best English translation changes with context.