Chci přestat pracovat.

Czech often omits subject pronouns because the verb ending already shows who the subject is.

• chci = I want

So já is not necessary. You could say Já chci přestat pracovat, but that usually adds emphasis or contrast, like I want to stop working.

Word by word:

• chci = I want
• přestat = to stop
• pracovat = to work / working

So the structure is literally:

• I want + to stop + to work

which corresponds naturally to I want to stop working.

Because Czech, like English, can chain verbs together.

Here the pattern is:

• chtít
  • infinitive
• přestat
  • infinitive

So:

• chci přestat = I want to stop
• přestat pracovat = to stop working

This is completely normal in Czech.

Chci is the 1st person singular present tense form of chtít (to want).

So:

• chci = I want

Some other forms of chtít are:

• chceš = you want
• chce = he/she/it wants
• chceme = we want
• chcete = you want (plural/formal)
• chtějí / chcou = they want

After chci, Czech uses the infinitive, not a conjugated form.

So:

• Chci přestat = I want to stop
• not Chci přestanu

Compare with English:

• I want to stop
• not I want I stop

So přestat is the correct infinitive form here.

Přestat is a perfective verb. In Czech, aspect is very important.

• přestat = to stop as a completed change, reaching the point where something stops
• přestávat = imperfective partner, focusing more on the process or repeated stopping

In this sentence, přestat is the natural choice because the speaker wants to stop as a completed action:

• Chci přestat pracovat. = I want to stop working.

Using přestávat here would usually sound less natural unless a special context requires it.

It can cover both ideas depending on context.

• pracovat = to work
• in English, this may be translated as to work, to be working, or working

So Chci přestat pracovat can mean:

• I want to stop working
• I want to stop work
• sometimes even I want to quit working

The exact English wording depends on context.

Not exactly, though it can be close in some contexts.

• Chci přestat pracovat. = I want to stop working.

This could mean:

• stop working for now
• stop working in general
• retire
• quit a job

If you specifically mean quit my job, Czech often uses more specific expressions, for example:

• Chci dát výpověď. = I want to hand in my notice / quit my job.
• Chci skončit v práci. = I want to leave my job / finish at work.

So your sentence is broader than just quit my job.

Usually it suggests stopping working, not just taking a short break.

If you mean I want to stop for a moment / take a break from work, Czech would often say something more specific, such as:

• Chci si dát pauzu. = I want to take a break.
• Chci na chvíli přestat pracovat. = I want to stop working for a while.

Without extra context, Chci přestat pracovat sounds more like a real stopping, not just a short pause.

Yes, Czech word order is fairly flexible, but the neutral order here is:

• Chci přestat pracovat.

Other orders are possible, but they change the emphasis. For example:

• Pracovat chci přestat. = emphasis on working
• Přestat pracovat chci. = emphasis on the whole idea of stopping work

For a learner, the given order is the best and most natural one to use first.

Yes, chci is tricky for English speakers.

A rough guide:

• ch in Czech is like the ch in Scottish loch or German Bach
• ci here sounds roughly like tsi

So chci is approximately:

• kh-tsi

The first sound and the ts cluster run together quickly.

It may feel awkward at first, but this is normal.

The hardest sound here is ř, which is a special Czech sound.

Very roughly:

• pře sounds something like przhe or przheh, but there is no exact English equivalent.

The whole word přestat is roughly:

• przhes-tat (very approximate)

A few useful points:

• Czech stress is usually on the first syllable
• so: PŘEstat
• the ř sound takes time to master; many learners approximate it at first, and that is normal

Because Czech does not need one here.

The verb přestat commonly takes an infinitive directly:

• přestat pracovat = to stop working
• přestat kouřit = to stop smoking
• přestat mluvit = to stop talking

So this is simply the normal Czech structure.

You could, but it means something different.

• Nechci pracovat. = I don’t want to work.
• Chci přestat pracovat. = I want to stop working.

The first sentence expresses lack of desire to work. The second expresses a desire to stop an activity that is happening or is expected to happen.

So they are related, but not the same.

Yes. Pracovat is an imperfective verb.

That makes sense because working is usually seen as an ongoing activity rather than a single completed event.

So in this sentence:

• přestat gives the idea of reaching the point of stopping
• pracovat describes the ongoing activity that will stop

This combination is very natural in Czech.

Yes, a little.

• Chci přestat pracovat. = I want to stop working.
• Chci už přestat pracovat. = I want to stop working already / I want to stop working now.

Adding už often gives a sense of:

• already
• finally
• now
• sometimes impatience or urgency

So it can make the sentence sound more immediate.

No noun case issue appears here, because both complements are infinitives, not nouns.

You have:

• chci
  • infinitive
• přestat
  • infinitive

So there is no object noun here that needs accusative, genitive, etc.

If you added a noun, then case questions might appear. But in this exact sentence, the structure is purely verbal.