Chci obeplout jez a projet peřej.

Because Czech often drops subject pronouns when the verb already makes the person clear.

• chci = I want
• so já chci is possible, but já is only needed for emphasis or contrast

So Chci obeplout jez a projet peřej is the normal neutral way to say it.

In Czech, the infinitive does not use a separate particle like English to. The infinitive is just the verb form itself.

• obeplout = to go/sail around
• projet = to go through / pass through

After verbs like chtít (to want), Czech simply uses the infinitive directly:

• chci jít = I want to go
• chci obeplout = I want to go around

Because they depend on chci (I want).

Just like English says I want to do X, Czech says:

• chci + infinitive

So here:

• chci obeplout = I want to go around
• chci projet = I want to pass through

The second infinitive is linked by a (and), so chci applies to both verbs.

Because they highlight two different kinds of movement.

• obeplout comes from plout = to float / sail / move on water
• projet comes from jet = to go / ride / travel through

So:

• obeplout jez = go around the weir on water
• projet peřej = pass through the rapid section

This is very natural in Czech: the chosen verb often reflects the type of movement involved.

They are perfective because the speaker means completed actions: not just being in the process of going around or through, but successfully finishing both actions.

• obeplout = to go around completely
• projet = to go through successfully / all the way through

With chci, perfective often sounds natural when you mean I want to accomplish this.

Imperfective versions would suggest a more general, repeated, or process-focused meaning, for example:

• obeplouvat
• projíždět

Those would not fit this sentence as neatly if the idea is one completed maneuver.

They are both in the accusative, because they are the direct objects of the infinitives.

You can think of it like this:

• obeplout co? → jez
• projet co? → peřej

So even though the endings may not obviously change, grammatically both nouns are accusative here.

Because in Czech, some nouns have the same form in the nominative and accusative singular.

• jez is a masculine inanimate noun, and masculine inanimate nouns often have identical nominative and accusative singular forms.
• peřej also has an accusative singular form that looks the same as the nominative.

So the case is determined by function in the sentence, not only by the visible ending.

Yes, here peřej is singular.

That can feel strange to an English speaker, because English often uses rapids as a plural noun. Czech can use singular peřej to mean:

• one rapid
• one rapid section
• one stretch of fast, rough water

The plural peřeje also exists, but the singular is perfectly normal in the right context.

Czech has no articles.

So:

• jez can mean a weir or the weir
• peřej can mean a rapid or the rapid(s) depending on context

Whether something is specific or general is usually understood from the situation, previous conversation, or word order/emphasis.

A simply means and. It joins the two infinitive phrases:

• obeplout jez
• projet peřej

So the structure is:

• Chci [obeplout jez] a [projet peřej].

In other words, the speaker wants to do both actions.

Yes. Czech word order is flexible, but the original sentence is a natural neutral order.

• Chci obeplout jez a projet peřej. = neutral
• Já chci obeplout jez a projet peřej. = adds emphasis to I
• Peřej chci projet a jez obeplout. = shifts emphasis/contrast

So the basic meaning can stay the same, but the focus changes depending on the order.

A helpful rough guide is:

• Chci ≈ kh-tsee
• obeplout ≈ o-be-plout
• jez ≈ yez
• a ≈ short ah
• projet ≈ pro-yet
• peřej ≈ roughly pe-rzhey

A few key pronunciation points:

• ch is the throaty sound from Scottish loch or German Bach
• j is like English y
• c is ts
• ř is the famous Czech sound, something like an r mixed with zh; learners usually need time with it

Also, Czech stress normally falls on the first syllable of each word.