Na základě podnájemní smlouvy lze změnu místa trvalého pobytu zaevidovat.

Na základě means on the basis of, based on, or by virtue of.

It is a fixed expression, and základě is in the locative singular of základ. The noun that follows is in the genitive:

• na základě smlouvy = on the basis of a contract
• na základě zákona = on the basis of the law

So in your sentence:

• na základě podnájemní smlouvy = on the basis of a sublease agreement

This whole phrase functions as an adverbial phrase explaining what document/legal basis allows the registration.

Because after na základě, the following noun goes into the genitive.

The basic dictionary form is:

• podnájemní smlouva = a sublease agreement

But in this sentence it changes to genitive singular:

• podnájemní smlouvy

So:

• na základě podnájemní smlouvy

This is a very common pattern in Czech: a preposition or fixed phrase requires a certain case, so the noun changes form.

They are related but not the same.

• nájemní smlouva = a lease / tenancy agreement
• podnájemní smlouva = a sublease agreement

A podnájem is a situation where someone who is already renting a place lets another person use it. So podnájemní smlouva is specifically a sublease, not the primary lease.

For a learner, it helps to notice:

• nájem = lease, rent
• podnájem = sublease

The prefix pod- often adds the idea of something sub- or secondary.

Lze means it is possible, one can, or can be in an impersonal sense.

It is an impersonal form, often used in formal or official language. It does not name who exactly does the action.

So:

• lze zaevidovat = it is possible to register
• more naturally in English here: can be registered

This sounds more official and bureaucratic than everyday speech.

Compare:

• To lze udělat. = That can be done.
• Můžete to udělat. = You can do it.

In your sentence, lze is used because the style is administrative/legal, where Czech often prefers impersonal wording.

Because lze is followed by an infinitive.

Structure:

• lze + infinitive

So here:

• lze ... zaevidovat = it is possible to register ...

The infinitive often comes later in the sentence, especially in formal Czech, although word order can vary.

This is similar to English structures like:

• it is possible to register
• can register

So the core verbal structure is:

• lze zaevidovat

Everything in between gives more information about what can be registered.

Because změnu is the accusative singular form of změna.

The infinitive zaevidovat takes a direct object: you register something. That direct object is změnu místa trvalého pobytu.

Dictionary form:

• změna = change

Accusative singular:

• změnu

So:

• zaevidovat změnu = to register a change

This is one of the most important Czech case patterns to notice: the direct object of a verb is often in the accusative.

They are part of a noun phrase built through genitive relationships.

The key structure is:

• změna místa trvalého pobytu

Literally, this is something like:

• change of the place of permanent residence

Breaking it down:

• změnu = change (accusative, because it is the direct object)
• místa = of the place (genitive of místo)
• trvalého pobytu = of permanent residence

And inside that last part:

• trvalého agrees with pobytu
• pobytu is genitive of pobyt

So the phrase is nested:

• změnu
  
  • místa
    
    • trvalého pobytu

This kind of noun stacking is very common in official Czech.

Not quite. Trvalý pobyt is a specific legal/administrative term in Czech.

It usually means a person’s official permanent residence address for state records, not necessarily the place where they physically live every day.

So although the literal words are:

• trvalý = permanent
• pobyt = stay/residence

the combined phrase trvalý pobyt is best understood as a fixed legal term.

That is why the whole sentence sounds bureaucratic: it is talking about registering a change of an officially recorded address.

Because the sentence uses a more formal legal/administrative expression.

• adresa = address
• místo trvalého pobytu = place of permanent residence

In ordinary speech, people might often talk about an address, but official Czech frequently uses more precise legal wording. So:

• změna adresy = change of address
• změna místa trvalého pobytu = change of permanent residence location/address

The second one is more specific and more formal.

Zaevidovat comes from evidence / evidovat in the sense of to enter into records, to record officially, or to register in an administrative system.

In bureaucratic Czech, zaevidovat often suggests that something is being officially entered into a registry or database.

Rough comparison:

• registrovat = to register
• evidovat = to keep on record / record
• zaevidovat = to record officially, to enter into the records

In many contexts, English may still translate it simply as register, but the Czech verb has a slightly more administrative flavor.

It helps make the verb perfective.

Czech verbs often come in aspect pairs:

• evidovat = imperfective
• zaevidovat = perfective

Very roughly:

• evidovat focuses on the process, repeated action, or ongoing record-keeping
• zaevidovat focuses on the completed act of entering something into the records

In this sentence, the perfective form makes sense because the idea is that the change can be successfully registered as a completed administrative act.

Not exactly in the strict grammatical sense, but it often translates naturally into English as a passive.

Czech structure:

• lze ... zaevidovat = it is possible to register ...

English often prefers:

• The change can be registered ...

So the Czech is really an impersonal construction, not a classic passive form like:

• je zaevidována / bude zaevidována

But in translation, English often uses a passive because it sounds more natural.

That word order is normal, especially in formal Czech.

The structure is:

• lze
  • object + infinitive

So:

• lze změnu místa trvalého pobytu zaevidovat

Czech word order is flexible, and official style often places long noun phrases before the infinitive. This can make the sentence sound more formal and dense.

A learner might also encounter:

• změnu místa trvalého pobytu lze zaevidovat
• lze zaevidovat změnu místa trvalého pobytu

All of these are possible, though the exact emphasis changes slightly.

Usually not in this exact form. It sounds official, administrative, or legal.

In everyday speech, someone might say something simpler, for example:

• S podnájemní smlouvou si můžete změnit trvalý pobyt.
• Na základě podnájemní smlouvy si můžete nahlásit trvalý pobyt.

The original sentence is the kind of language you might see:

• on a government website
• in an office instruction
• in official written guidance

So it is useful Czech, but it belongs more to the formal register than casual conversation.