Dřevěné uhlí a briketa jsou tady.

Literally, dřevěné uhlí means wood coal. In normal usage, it is the standard Czech expression for charcoal.

So even though you may understand the meaning already, it helps to know that this is not a random combination of words. It is a normal, established phrase:

• dřevěné = wooden, made of wood, wood-related
• uhlí = coal

Together, dřevěné uhlí means charcoal.

Because it agrees with uhlí.

In Czech, adjectives change their endings to match the noun in:

• gender
• number
• case

Here, uhlí is:

• neuter
• singular
• nominative

So the adjective must also be neuter singular nominative:

• masculine: dřevěný
• feminine: dřevěná
• neuter: dřevěné

That is why the sentence has dřevěné uhlí.

No. In this sentence, dřevěné only modifies uhlí.

So the structure is:

• dřevěné uhlí = charcoal
• a
• briketa = briquette

If you wanted an adjective to describe briketa too, it would need its own feminine form, because briketa is feminine:

• dřevěná briketa

So dřevěné cannot directly agree with briketa here.

Because the subject is made of two parts joined by a:

• dřevěné uhlí
• briketa

Together they form a compound subject, so Czech normally uses a plural verb:

• jsou = are

Compare:

• Dřevěné uhlí je tady. = The charcoal is here.
• Briketa je tady. = The briquette is here.
• Dřevěné uhlí a briketa jsou tady. = The charcoal and the briquette are here.

Even though both nouns are singular individually, together they count as more than one thing.

They are in the nominative case.

That is because they are the subject of the sentence:

• dřevěné uhlí a briketa = the things that are here

In simple present-tense sentences with být = to be, the subject is normally nominative.

Here, uhlí is singular.

It is a mass noun, like coal or water in English. Mass nouns often refer to a substance rather than to separate countable items.

So:

• uhlí je = coal is
• dřevěné uhlí je = charcoal is

Even though English learners may expect something countable, uhlí behaves like a singular mass noun here.

Because briketa itself means one briquette. The verb is plural not because briketa is plural, but because the whole subject has two elements:

• dřevěné uhlí
• briketa

So the sentence is structurally:

• charcoal
  • a briquette = two coordinated items
• therefore are here

If you wanted more than one briquette, you would use a plural noun:

• brikety

For example:

• Dřevěné uhlí a brikety jsou tady.

Because Czech does not have articles like English.

So briketa can mean:

• a briquette
• the briquette

The exact meaning depends on context.

Likewise, dřevěné uhlí can mean charcoal or the charcoal, depending on the situation. Czech usually leaves this unstated unless something else in the sentence makes it specific.

Yes. All of these can mean here, but they differ a little in style.

• tady = very common, natural in everyday speech
• zde = more formal, written, or official
• tu = also possible, often a bit shorter or more conversational depending on context

So these are all possible:

• Dřevěné uhlí a briketa jsou tady.
• Dřevěné uhlí a briketa jsou zde.
• Dřevěné uhlí a briketa jsou tu.

For everyday neutral Czech, tady is a very normal choice.

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

This sentence in its given form is natural:

• Dřevěné uhlí a briketa jsou tady.

But you could also say:

• Tady jsou dřevěné uhlí a briketa.

The difference is mainly emphasis or information structure:

• starting with dřevěné uhlí a briketa puts the focus first on what is being talked about
• starting with tady puts more focus on the location

So the meaning stays similar, but the emphasis changes.

The hardest part for most English speakers is ř, which is a special Czech sound.

A useful learner-friendly idea is:

• ř is something like an r mixed with a zh sound
• it does not exist in normal English

Also:

• ě often makes the preceding consonant softer and adds a y-like sound

So dřevěné is roughly pronounced something like drzhe-vye-neh, though that is only an approximation.

A few parts:

• dře-
• -vě-
• -né

You do not need a perfect ř to be understood at first, but it is worth practicing because it is a very characteristic Czech sound.