Elektřina je drahá.

Because elektřina is a feminine singular noun, and Czech adjectives must agree with the noun they describe.

The adjective drahý means expensive, but that is the masculine singular dictionary form. Its basic forms are:

• drahý = masculine
• drahá = feminine
• drahé = neuter

So:

• levná elektřina = cheap electricity
• drahá elektřina = expensive electricity

In your sentence, drahá is the correct form because it matches elektřina.

Je is the 3rd person singular form of the verb být = to be.

So:

• já jsem = I am
• ty jsi = you are
• on / ona / ono je = he / she / it is

In Elektřina je drahá, je means is.

This sentence follows the very common pattern:

noun + je + adjective

For example:

• Voda je studená. = The water is cold.
• Káva je horká. = The coffee is hot.
• Elektřina je drahá. = Electricity is expensive.

In a normal full sentence like this, no — you normally keep je.

Czech usually does include the present-tense form of to be:

• Elektřina je drahá.

Leaving it out would sound incomplete in ordinary speech. You may sometimes see omission in:

• headlines
• notes
• very informal fragments
• poetry

But for standard Czech, a learner should say:

• Elektřina je drahá.

not just

• Elektřina drahá.

Because Czech does not have articles like English a / an / the.

So elektřina can mean:

• electricity
• the electricity
• sometimes electric power in a general sense

The exact meaning depends on context.

That is completely normal in Czech. For example:

• Auto je nové. = The car is new / A car is new (depending on context)
• Mléko je studené. = The milk is cold / Milk is cold

So in Elektřina je drahá, there is no missing word — Czech simply does not use articles.

It is in the nominative singular.

That is because elektřina is the subject of the sentence, and the subject is normally in the nominative case.

Also, after je, the adjective drahá is in the nominative too, because it is a predicate adjective agreeing with the subject.

So the structure is:

• Elektřina = nominative subject
• je = verb
• drahá = nominative adjective describing the subject

The sound ř is one of the most famous difficult Czech sounds. It does not exist in standard English.

In elektřina, the word is pronounced approximately:

e-LEK-tři-na

A rough learner-friendly approximation is something like:

e-LEK-trzhi-na

But that is only an approximation.

A few helpful points:

• ř is related to r
• it also has a zh-like friction at the same time
• it is not just plain r
• it is not just zh either

If you are a beginner, a plain r is often understood better than forcing a very exaggerated sound. So a rough elektrina-like pronunciation may still be understood, even though it is not fully correct.

The á shows a long vowel.

In Czech, vowel length matters, so:

• a = short
• á = long

So drahá is pronounced with a longer final vowel than draha would be.

This is important because vowel length can sometimes change the word or make your speech sound unnatural if ignored.

A rough pronunciation is:

DRA-haa

with the stress still on the first syllable.

In Czech, stress is usually on the first syllable of each word.

So:

• ELEKtřina
• JE
• DRAhá

In normal speech, the sentence rhythm is usually something like:

ELEKtřina je DRAhá.

A couple of useful notes:

• Czech stress is more regular than English stress.
• The first syllable gets the stress even if it does not have a long vowel.
• Vowel length and stress are different things. For example, in drahá, the stress is on dra-, but the final -há still has a long vowel.

Yes. Czech word order is fairly flexible, but different orders change the emphasis.

The neutral order is:

• Elektřina je drahá.

You could also say:

• Drahá je elektřina.

That sounds more marked, something like:

• Electricity is what’s expensive
• or It’s electricity that is expensive

Another possible order is:

• Elektřina drahá je.

But that is not the normal neutral order and may sound poetic, emphatic, or unusual depending on context.

For a learner, the safest default is:

• Elektřina je drahá.

Yes, elektřina is a feminine noun.

One clue is its ending: many Czech feminine nouns end in -a, and elektřina follows that common pattern.

For example:

• voda = water
• káva = coffee
• cena = price
• elektřina = electricity

Because it is feminine, words that agree with it also take feminine forms:

• ta elektřina = that electricity
• levná elektřina = cheap electricity
• drahá elektřina = expensive electricity

Sometimes, yes, but elektřina is the standard word for electricity.

Elektrika also exists, but it can sound more informal or can refer to electrics / electrical system / wiring, depending on context.

So if you want the safest standard sentence meaning Electricity is expensive, use:

• Elektřina je drahá.

That is the most straightforward choice for a learner.