La ripartizione delle spese cambia le spese condominiali.

The subject is La ripartizione delle spese.

The object is le spese condominiali.

You can tell because cambia is a singular verb form, so it matches la ripartizione, which is singular. In other words:

• La ripartizione delle spese = the thing doing the action
• cambia = changes
• le spese condominiali = the thing being changed

So the structure is:

[Subject] + [verb] + [object]

Because the subject is singular:

• la ripartizione = singular
• so the verb must also be singular: cambia

If the subject were plural, you would use cambiano.

For example:

• La ripartizione cambia = The allocation changes / changes something
• Le ripartizioni cambiano = The allocations change

Because in Italian, di + le contracts to delle.

So:

• di + le = delle

This is very common in Italian with prepositions and articles.

A few similar examples:

• di + il = del
• di + lo = dello
• di + la = della
• di + i = dei
• di + gli = degli
• di + le = delle

So la ripartizione delle spese literally contains the allocation of the expenses.

Here it means of the, not some.

That can confuse English speakers, because delle can sometimes be a partitive article meaning some. But in this sentence, it is clearly the contraction of:

• di + le = of the

So:

• la ripartizione delle spese = the allocation/distribution of the expenses

Because ripartizione is a feminine noun in Italian, so it takes the feminine singular article la:

• la ripartizione

Many Italian nouns ending in -zione are feminine:

• la situazione
• la stazione
• la costruzione
• la ripartizione

This is something worth memorizing as a useful pattern.

Ripartizione means something like distribution, allocation, or apportionment.

It comes from the verb ripartire, which in this context means to divide up or to allocate.

So la ripartizione delle spese refers to how the expenses are divided among people, units, or parties.

For an English speaker, allocation of expenses or apportionment of expenses is often the most natural way to understand it.

Because it agrees with spese, which is feminine plural.

• spesa = singular feminine
• spese = plural feminine

The adjective must match the noun in gender and number:

• spesa condominiale = condominium/shared-building expense
• spese condominiali = condominium/shared-building expenses

So:

• le spese condominiali is correct
• condominiali is plural because spese is plural

Because in Italian, many adjectives normally come after the noun.

So:

• spese condominiali = literally expenses condominium-related

This is very normal Italian word order.

English often puts adjectives before the noun, but Italian frequently puts them after:

• una casa grande = a big house
• spese condominiali = condominium expenses / shared-building expenses

Condominiali means relating to the condominium / apartment building / jointly owned building.

In practical usage, spese condominiali usually refers to expenses connected with the shared parts and management of a building, such as:

• cleaning common areas
• elevator costs
• maintenance
• building administration

So it is not just a direct word-for-word equivalent of English condominium. It is an adjective meaning connected with the condo/building association/shared residential building.

Because spese is a plural feminine noun, and the correct definite article is le.

Here is the pattern:

• la spesa = the expense
• le spese = the expenses

So:

• le spese condominiali = the condominium expenses

Italian uses articles more consistently than English, so where English might sometimes omit the, Italian often keeps it.

Yes, it is grammatically correct, but stylistically it sounds a bit repetitive.

The sentence is understandable, but a native speaker might sometimes prefer to rephrase it to avoid repeating spese so closely.

For a learner, though, this repetition is useful because it makes the grammar very clear:

• delle spese = of the expenses
• le spese condominiali = the condominium expenses

So the sentence is not wrong; it is just somewhat repetitive in style.

Yes. In this sentence, cambiare is used transitively, meaning to change something.

So:

• La ripartizione delle spese cambia le spese condominiali = the allocation of expenses changes the condominium expenses

Italian cambiare can be used:

• intransitively: Le cose cambiano = Things change
• transitively: Questo cambia tutto = This changes everything

Here it is transitive because it has a direct object: le spese condominiali.

Not always. The grammar maps nicely, but a completely word-for-word translation may sound stiff in English.

Italian structure:

• La ripartizione delle spese = the allocation/apportionment of the expenses
• cambia = changes
• le spese condominiali = the condominium expenses

A more natural English rendering may depend on context. The important point for the learner is how the Italian grammar works:

• article + noun
• di + article contraction
• singular verb agreeing with a singular subject
• adjective agreeing with a plural feminine noun

So even if the exact English phrasing varies, the Italian grammar in the sentence is straightforward and correct.