V peněžence mám jen jednu minci a žádné drobné.

Because v here means in, so it expresses a location, and Czech uses the locative case after v for static location.

• dictionary form: peněženka = wallet
• after v: v peněžence = in the wallet

So:

• peněženka = wallet
• v peněžence = in the wallet

There is also a consonant change:

• peněženk- → peněženc-

This kind of change is common in Czech declension.

Czech often leaves out possessive words like my when ownership is obvious from context.

Since the sentence already says mám = I have, it is natural to understand that this is my wallet unless the speaker means someone else’s.

So both are possible:

• V peněžence mám... = In my/the wallet, I have...
• V mé peněžence mám... = In my wallet, I have...

The version without mé is more natural unless you want extra emphasis on my.

Because Czech usually drops subject pronouns when they are clear from the verb ending.

• mám already means I have
• so já is not necessary

Compare:

• mám = I have
• já mám = I have / I have

Adding já usually gives emphasis, contrast, or emotional force.

Because mince is the direct object of mám, and direct objects usually go in the accusative case.

The base form is:

• jedna mince = one coin

But after mám:

• mám jednu minci = I have one coin

Both words change because mince is feminine:

• jedna → jednu
• mince → minci

So jednu minci is the accusative singular form.

Jen means only or just.

So:

• jen jednu minci = only one coin

You can also hear:

• jenom = only / just
• pouze = only

These are very similar, but the tone is a little different:

• jen = short, common, neutral
• jenom = also common, a bit fuller in sound
• pouze = slightly more formal or careful

In this sentence, jen sounds completely natural.

Drobné means small change, coins, or small money.

It comes from the adjective drobný = small, tiny, minor, but here it is being used like a noun.

A useful way to think of it is:

• drobné peníze = small money / change
• shortened to drobné

So:

• žádné drobné = no change / no small coins

In everyday Czech, drobné is a very common word when talking about paying, coins, or exact change.

Because žádné agrees with drobné in form.

Here drobné behaves like a neuter plural expression meaning change or small coins, so the matching form is:

• žádné drobné = no change

You can think of žádný / žádná / žádné as meaning no / not any, and its form changes to match the noun.

Examples:

• žádný problém = no problem
• žádná mince = no coin
• žádné drobné = no change

Even though drobné looks like an adjective, here it functions like a noun.

That is a very natural question.

Czech often uses negative concord, so you do get sentences like:

• Nemám žádné drobné. = I don’t have any change.

But in your sentence, the speaker is giving a full list of what is in the wallet:

• mám jen jednu minci a žádné drobné
• literally: I have only one coin and no change

So the whole sentence is not built as a negative clause. Instead, žádné drobné is one item in the list.

In other words:

• Mám jednu minci. = I have one coin.
• Nemám žádné drobné. = I don’t have any change.
• combined into one sentence, Czech can say: Mám jen jednu minci a žádné drobné.

This is normal and idiomatic.

Because Czech word order is flexible, and the speaker can move parts of the sentence for emphasis or topic.

Starting with V peněžence sets the scene first:

• V peněžence mám... = In my wallet, I have...

This makes the wallet the topic.

A more neutral alternative is also possible:

• Mám v peněžence jen jednu minci a žádné drobné.

Both are grammatical. The version with V peněžence first sounds very natural if the speaker wants to focus on what is inside the wallet.

Yes. A simply means and.

The sentence joins two things the speaker has in the wallet:

• jen jednu minci = only one coin
• žádné drobné = no change

So the structure is basically:

• I have X and Y

Even though Y is zero in quantity, a is still fine and natural.

If you wanted a stronger contrast, you might use something like ale in a different sentence, but here a is perfectly normal.

A simple pronunciation guide:

• ž sounds like the s in measure
• c sounds like ts
• é is a long e
• ě often softens the previous consonant

So approximately:

• peněžence ≈ pe-nye-zhen-tse
• žádné ≈ zhaad-neh

That is only an approximation for English speakers, but it will get you close.

A few key sounds:

• žá- in žádné has a long vowel
• -ce in peněžence is tse, not see or kay

Not in this sentence if you want the same meaning.

These words are different:

• mince = a coin
• peníze = money
• drobné = change / small coins

So:

• jednu minci = one coin
• žádné drobné = no change

The sentence contrasts one single coin with the absence of small change. If you replaced minci with peníze, the meaning would change.