Moderátor vyhlásil vítězný tým, aniž by ukázal tabulku výsledků.

Vyhlásil comes from vyhlásit, which usually means to announce officially, to proclaim, or to declare. In this sentence, it suggests a more formal act than řekl (said).

So:

• řekl = he said
• oznámil = he announced/informed
• vyhlásil = he officially announced/proclaimed

With vítězný tým, vyhlásil is very natural, because you often announce the winner or declare the winning team.

Tým is the direct object of vyhlásil, so it is in the accusative case.

However, tým is a masculine inanimate noun, and for many masculine inanimate nouns, the nominative and accusative singular have the same form.

So:

• nominative: tým
• accusative: tým

That is why it looks unchanged.

Because the phrase is functioning as the direct object of the verb vyhlásil.

The noun tým is masculine inanimate singular accusative, and the adjective must match it:

• nominative singular: vítězný tým
• accusative singular: vítězný tým

For masculine inanimate nouns, the adjective also often looks the same in nominative and accusative.

You would get vítězného týmu in a different grammatical situation, for example in the genitive:

• bez vítězného týmu = without the winning team

Aniž by means without doing something, without the fact that someone did something, or sometimes while not doing something.

In this sentence:

• aniž by ukázal tabulku výsledků
• without showing the results table

It introduces an action that did not happen, even though the main action did happen.

A useful way to think about it is:

• X happened, aniž by Y happened
• X happened without Y happening

After aniž, Czech normally uses a clause with by plus the past-participle-like form of the verb:

• aniž by ukázal
• aniž by řekl
• aniž by vysvětlila

This is a standard grammatical pattern in Czech.

Even though by is also used in the conditional, here the whole structure aniž by + verb functions as a fixed way to express without doing.

So it is best learned as a pattern:

• aniž by + l-form of the verb

In aniž by ukázal, the form ukázal agrees with the implied subject, which is the same as in the main clause: moderátor.

Since moderátor is:

• singular
• masculine animate

the verb form is ukázal.

If the subject were feminine, it would change:

• Moderátorka vyhlásila vítězný tým, aniž by ukázala tabulku výsledků.

If the subject were plural masculine animate:

• Moderátoři vyhlásili vítězný tým, aniž by ukázali tabulku výsledků.

Czech does not usually use a direct equivalent of the English -ing form in this structure.

English says:

• without showing the results table

Czech typically says:

• aniž by ukázal tabulku výsledků

So instead of a gerund, Czech often uses a subordinate clause with aniž by.

That is one of the big structural differences between English and Czech.

This phrase means the table/chart of results.

Here is the structure:

• tabulku = accusative singular of tabulka
• výsledků = genitive plural of výsledky

So literally:

• tabulku výsledků = a table of results

Why these cases?

1. ukázal takes a direct object, so tabulka becomes accusative:

   • tabulka → tabulku

2. výsledků is in the genitive because Czech often uses the genitive for of-phrases:

   • tabulka výsledků = table of results

The basic noun is výsledky = results.

In the phrase tabulka výsledků, Czech uses the genitive plural to express of results.

So:

• nominative plural: výsledky
• genitive plural: výsledků

This is very common in Czech noun combinations:

• seznam studentů = list of students
• sklenice vody = glass of water
• tabulka výsledků = table of results

Yes. In standard Czech spelling, a subordinate clause introduced by aniž, že, když, protože, and similar conjunctions is normally separated by a comma.

So:

• Moderátor vyhlásil vítězný tým, aniž by ukázal tabulku výsledků.

The comma is the normal and correct punctuation here.

Yes, both verbs are perfective:

• vyhlásil ← vyhlásit
• ukázal ← ukázat

That matters because the sentence refers to completed actions:

• he announced/declared the winning team
• he did so without showing the results table

Perfective verbs fit well because the sentence presents the events as whole, completed acts.

If you used imperfective verbs, the meaning or style would shift. In this sentence, the perfective forms are the natural choice.

It depends on context.

In Czech, moderátor can mean:

• host of a show
• presenter
• announcer
• moderator

In this sentence, because he is announcing the winning team, English words like host, presenter, or announcer may sound more natural than moderator, unless the setting is specifically something like a debate or formal event with a moderator.

So moderátor is the Czech word, but the best English equivalent depends on the situation.