Tato vláda je nová.

Tato is the feminine singular nominative form of the demonstrative this.

The noun vláda is feminine, so the demonstrative has to match it in gender, number, and case.

A very simplified set is:

• masculine: ten
• feminine: ta / tato
• neuter: to

More specifically:

• ta vláda = that government or sometimes just the government in context
• tato vláda = this government

So tato is used because vláda is feminine singular nominative, and the speaker means this.

In Czech, many nouns ending in -a are feminine, and vláda is one of them.

That matters because other words around it must agree with it:

• tato vláda
• nová vláda

Both tato and nová have feminine endings to match vláda.

A learner should remember that grammatical gender in Czech is a grammar category, not necessarily something logical or natural. You usually learn each noun together with its gender.

Because adjectives in Czech must agree with the noun they describe.

Since vláda is:

• feminine
• singular
• nominative

the adjective nový changes to the matching form nová.

Compare:

• masculine: nový
• feminine: nová
• neuter: nové

So:

• nový dům = new house
• nová vláda = new government
• nové auto = new car

It is in the nominative case.

The nominative is typically used for the subject of the sentence, and here tato vláda is the subject.

In Tato vláda je nová, the structure is:

• Tato vláda = subject
• je = is
• nová = predicate adjective describing the subject

Because the subject is nominative, the demonstrative and noun appear in nominative form.

In standard Czech, yes, you normally use je in a sentence like this.

So:

• Tato vláda je nová. = correct standard sentence

Unlike Russian, Czech usually does not drop the present-tense form of to be in ordinary neutral statements.

You may occasionally see omission in headlines, notes, or very informal styles, but for normal speech and writing, use je.

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

The neutral order is:

• Tato vláda je nová.

Other possible orders include:

• Nová je tato vláda.
• Je tato vláda nová? = question
• Tato nová vláda... = if new is placed directly before the noun inside a noun phrase

In your sentence, nová comes after je, so it works as the predicate adjective: is new.

For a beginner, the safest default is:

• subject + je
  • adjective

They are structured differently.

• Tato vláda je nová. = a full sentence: This government is new.
• Tato nová vláda = a noun phrase: this new government

In the full sentence, nová is the part that comes after je and says something about the subject.

In the noun phrase, nová directly modifies vláda before the noun.

So:

• Tato vláda je nová. = statement
• Tato nová vláda je silná. = This new government is strong.

A rough pronunciation is:

• vláda ≈ VLAA-da
• nová ≈ NO-vaa

A few useful points:

• á is a long vowel, so hold it a bit longer than a
• stress in Czech is usually on the first syllable
• vl at the beginning may feel unusual for English speakers, but both sounds are pronounced: v
  • l

So:

• vláda → stress on vlá-
• nová → stress on no-

Czech has no articles like English the and a/an.

That means vláda can mean:

• government
• the government
• a government

The exact meaning depends on context.

In this sentence, tato makes it specific, so it clearly means this government.

This is one of the big differences from English: Czech usually does not need a separate word for the or a.

Yes, tato is perfectly normal, but in everyday conversation Czech often uses the shorter form ta as well.

So you may hear:

• Tato vláda je nová. = more explicit this government
• Ta vláda je nová. = can mean that government, but in real usage it can also sound like this/that government depending on context

For learners, it is good to know:

• tento / tato / toto = clear textbook form for this
• ten / ta / to = very common in real Czech, with meanings depending a lot on context

So your sentence is absolutely correct and natural.

In Czech, adjectives still agree with the noun even when they come after to be.

So the adjective after je must still match vláda:

• vláda is feminine singular
• therefore: nová

Compare:

• Ten dům je nový. = The house is new.
• Ta vláda je nová. = The government is new.
• To auto je nové. = The car is new.

So Czech does not keep one fixed adjective form after is. Agreement still applies.