Il soggetto certificatore indica la classe energetica.

Il is the masculine singular definite article in Italian, equivalent to the in English.

Here it goes with soggetto, which is a masculine singular noun:

• il soggetto = the subject / the entity / the party

Italian usually uses articles more often than English, so Il soggetto certificatore is the normal way to say the certifying entity.

Not in this sentence.

Although soggetto can mean the grammatical subject, here it means something more like:

• party
• entity
• person or body involved

So il soggetto certificatore means the certifying entity/body/person, depending on context.

In formal or legal Italian, soggetto is often used in this broader sense.

Certificatore is a noun or adjective meaning certifying or certifier, especially in formal, technical, or administrative language.

So:

• soggetto certificatore = certifying entity
• literally, something like entity that certifies

Italian often uses this kind of agent noun ending in -tore:

• tradurre → traduttore = translator
• lavorare → lavoratore = worker
• certificare → certificatore = certifier / certifying

In this sentence, certificatore describes soggetto.

Because in Italian, descriptive adjectives usually come after the noun.

So:

• il soggetto certificatore
• literally: the entity certifying
• naturally: the certifying entity

Some adjectives can come before the noun, but in technical or formal language, adjectives like this commonly follow it.

Indica is the third person singular present indicative of indicare.

So:

• io indico = I indicate
• tu indichi = you indicate
• lui/lei indica = he/she indicates
• il soggetto certificatore indica = the certifying entity indicates

Here it means something like:

• indicates
• states
• specifies

depending on context.

Because indicare is the infinitive, meaning to indicate.

In a full sentence with a subject, Italian usually needs a conjugated verb:

• indicare = to indicate
• indica = indicates

So:

• Il soggetto certificatore indica... = The certifying entity indicates...

If you used indicare, it would not work as a complete main clause here.

Classe energetica is a noun + adjective combination:

• classe = class
• energetica = energetic / energy-related

So:

• la classe energetica = the energy class / the energy rating

In Italian, adjectives usually come after the noun, especially in technical phrases. That is why it is:

• classe energetica not
• energetica classe

This is very common:

• certificazione energetica = energy certification
• efficienza energetica = energy efficiency

Because classe is a feminine singular noun.

So it takes the feminine singular definite article la:

• la classe

And the adjective must agree with it:

• energetica = feminine singular

That is why you get:

• la classe energetica

Compare:

• il soggetto certificatore → masculine singular
• la classe energetica → feminine singular

In Italian, adjectives usually agree in gender and number with the noun they describe.

Here:

• classe is feminine singular
• so the adjective must also be feminine singular
• therefore: energetica

Compare the forms:

• energetico = masculine singular
• energetica = feminine singular
• energetici = masculine plural
• energetiche = feminine plural

So:

• la classe energetica
• le classi energetiche

You could say that grammatically, but it would mean something different.

The original sentence is:

• Il soggetto certificatore indica la classe energetica.
• The certifying entity indicates the energy class.

If you switch the nouns:

• La classe energetica indica il soggetto certificatore.

that would mean:

• The energy class indicates the certifying entity

So the word order matters here because Italian usually marks the subject and object through position and meaning, not through case endings like Latin.

Often yes, because Italian is a pro-drop language, meaning the subject pronoun can often be omitted.

For example:

• Indica la classe energetica. = He/She/It indicates the energy class.

However, in this sentence the full subject is important because it specifies who is doing the action:

• Il soggetto certificatore indica la classe energetica.

So omitting it would make the sentence less precise.

Not always. Depending on context, indicare can mean:

• indicate
• state
• show
• specify
• point out

In this formal sentence, indica probably means something like:

• states
• specifies
• indicates

rather than physically pointing at something.

A simple pronunciation guide is:

Il soggetto certificatore indica la classe energetica
eel sod-JET-to cher-tee-fee-ca-TO-reen-DEE-ca la CLAS-se e-ner-JEH-tee-ca

A few useful notes:

• gli / gi / ge sounds can be tricky, but here soggetto has a strong j-like sound in -getto
• ce/ci in certificatore are pronounced like ch in English chair
• stress is roughly on:
  • soggètto
  • certificatóre
  • ìndica
  • clàsse
  • energètica

Not really. It sounds formal, technical, or bureaucratic.

A native speaker would understand it, but in ordinary conversation they might choose simpler wording depending on context.

For example, in technical documents, legal texts, or energy-certification forms, phrases like:

• soggetto certificatore
• classe energetica

are very normal.

So this sentence is good Italian, but it belongs more to an official or specialized register than casual speech.