Můžeš rozluštit kód?

Můžeš is the 2nd person singular present tense of moci / moct, meaning to be able to / can.

So:

• já můžu / mohu = I can
• ty můžeš = you can
• on/ona může = he/she can

In this sentence, můžeš means can you when used as a question.

Because it is 2nd person singular, it is informal and addressed to one person you would call ty.

In Czech, the subject pronoun is often left out because the verb ending already shows who the subject is.

Here, -eš in můžeš tells you the subject is ty (you, singular informal).

So:

• Můžeš rozluštit kód?
• Ty můžeš rozluštit kód?

Both are possible, but the version without ty is more natural in many situations.

If you include ty, it often adds emphasis, like:

• Ty můžeš rozluštit kód? = You can decipher the code?

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

• luštit = imperfective: to be deciphering, to work on deciphering
• rozluštit = perfective: to decipher successfully, to solve completely

In Můžeš rozluštit kód?, the speaker is asking about the completed result:
Can you decipher the code? = can you figure it out successfully?

If you said Můžeš luštit kód?, it would sound more like:

• Can you spend time deciphering the code?
• Are you able to work on the code?

So rozluštit is the natural choice when the focus is on solving it.

Kód is the direct object of rozluštit, so it is in the accusative case.

However, kód is a masculine inanimate noun, and for many masculine inanimate nouns, the accusative singular looks the same as the nominative singular.

So:

• nominative: kód
• accusative: kód

That is why you do not see any change here.

It is informal, because můžeš is the form used with ty.

If you want to be polite or formal, you would usually say:

• Můžete rozluštit kód?

That can mean:

• Can you decipher the code? (formal, one person)
• Can you decipher the code? (plural, more than one person)

So:

• můžeš = informal singular
• můžete = formal singular or plural

A rough pronunciation guide is:

MOO-zhesh ROZ-loosh-tit koht?

A few important sounds:

• ů in můžeš sounds like a long oo
• ž sounds like the s in measure
• š sounds like sh
• ó in kód is a long o

More carefully:

• Můžeš ≈ MOO-zhesh
• rozluštit ≈ ROZ-loosh-tit
• kód ≈ koht

The stress in Czech is usually on the first syllable of each word:

• MŮ-žeš
• ROZ-luš-tit
• KÓD

Correct: Czech does not need an auxiliary like do to form questions.

English:

• Do you understand?
• Can you decipher the code?

Czech often uses the same verb form and relies on:

• intonation
• context
• sometimes word order

So:

• Můžeš rozluštit kód. = You can decipher the code.
• Můžeš rozluštit kód? = Can you decipher the code?

No extra helping verb is needed.

Yes. Czech word order is more flexible than English word order.

The neutral version is:

• Můžeš rozluštit kód?

But you may also hear:

• Kód můžeš rozluštit?
• Rozluštit kód můžeš?

These alternatives usually add a different focus or emphasis.

For example:

• Kód můžeš rozluštit? may emphasize the code
• Rozluštit kód můžeš? may emphasize the ability to decipher it

For a learner, the basic and safest version is:

• Můžeš rozluštit kód?

Usually, no—můžeš is the better choice here.

In Czech:

• moci / moct = can, be able to, have the possibility
• umět = to know how to, to have a learned skill

Examples:

• Umím plavat. = I know how to swim.
• Můžu plavat. = I can swim / I’m allowed to swim / it is possible for me to swim.

With rozluštit kód, the sentence is usually about whether you are able to do it in this situation, not whether you have a learned technical skill in general.

So:

• Můžeš rozluštit kód? = Can you decipher the code?

If you said Umíš rozluštit kód?, it could sound more like:

• Do you know how to decipher a code?
• Are you skilled enough to do that?

That is possible in some contexts, but it is not the most neutral version here.

Rozluštit means to decipher, crack, solve, figure out something encoded or puzzling.

It is commonly used with things like:

• kód = code
• šifra = cipher
• záhada = mystery
• hádanka = riddle

So it often suggests taking something difficult, hidden, or encoded and successfully working out the answer.

Not always, but often.

Kód can refer to:

• a code
• a coded message
• a digital code
• a program code, depending on context

In this sentence, because the verb is rozluštit, the meaning strongly points toward:

• a code to be deciphered
• a cipher / encoded message

So the whole sentence sounds more like:

• Can you decipher the code? than
• Can you understand this computer code?

The exact meaning depends on the situation.

Yes. Czech moci / moct can express both:

• ability: can, be able to
• permission/possibility: may, be allowed to

For example:

• Můžu jít domů? = May I go home? / Can I go home?

In Můžeš rozluštit kód?, the most natural meaning is ability:

• Can you decipher the code?

A permission reading (Are you allowed to decipher the code?) would be unusual unless the context strongly suggested rules or authority.

The dictionary forms are:

• moct or moci = to be able to / can
• rozluštit = to decipher, solve

A learner should know that moct and moci are closely related forms of the same verb. In modern everyday Czech, moct is very common, while moci is also standard and often used in dictionaries and more formal contexts.

So from the sentence:

• můžeš comes from moct / moci
• rozluštit is already in the infinitive form

A few simple answers are:

• Ano. = Yes.
• Ne. = No.
• Ano, můžu. = Yes, I can.
• Ne, nemůžu. = No, I can’t.
• Zkusím to. = I’ll try.
• Nedokážu to. = I can’t do it / I’m not capable of it.
• Možná. = Maybe.

If you want to repeat the verb naturally, Czech often uses:

• Ano, rozluštím ho. = Yes, I’ll decipher it.
• Ne, nerozluštím ho. = No, I won’t/can’t decipher it.

Here ho means it, referring to kód.