Ο ενεργειακός επιθεωρητής κάνει την ενεργειακή επιθεώρηση.

Because the adjective has to agree with the noun it describes in gender, number, and case.

• ο ενεργειακός επιθεωρητής = the energy inspector

  • επιθεωρητής is masculine singular nominative
  • so the adjective is also masculine singular nominative: ενεργειακός

• την ενεργειακή επιθεώρηση = the energy inspection

  • επιθεώρηση is feminine singular accusative
  • so the adjective becomes feminine singular accusative: ενεργειακή

This kind of agreement is a very important part of Greek grammar.

These are different forms of the definite article the.

• ο = masculine singular nominative article
• την = feminine singular accusative article

So:

• ο ενεργειακός επιθεωρητής = the inspector → the subject
• την ενεργειακή επιθεώρηση = the inspection → the direct object

English uses the for everything, but Greek changes the article depending on grammatical role, gender, and number.

In this sentence, the grammar makes it clear:

• ο ενεργειακός επιθεωρητής is in the nominative, so it is the subject
• την ενεργειακή επιθεώρηση is in the accusative, so it is the object

That means:

• the inspector does the action
• the inspection receives the action

This is one reason Greek word order can be more flexible than English: the endings and articles often tell you the role of each word.

Yes. Κάνει is from κάνω, which often means do or make. In Greek, just like in English, this kind of verb can be used with an action noun:

• κάνω μια ερώτηση = ask a question
• κάνω έλεγχο = do/carry out an inspection/check
• κάνει την ενεργειακή επιθεώρηση = does/carries out the energy inspection

So although κάνει is a general verb, the whole phrase is perfectly natural.

Yes. A more specific verb could be used, depending on style and context.

For example, you might also see something like:

• Ο ενεργειακός επιθεωρητής επιθεωρεί... = The energy inspector inspects...

But Greek very often uses κάνω + noun expressions, and κάνει την επιθεώρηση sounds natural. It is similar to how English sometimes says carry out an inspection rather than simply inspect.

Greek uses the definite article very often, often more than English does.

In this sentence, the articles make the phrase sound normal and complete:

• Ο ενεργειακός επιθεωρητής
• την ενεργειακή επιθεώρηση

If you removed the articles, the sentence would sound much less natural in ordinary prose and could feel more like a heading, label, or very telegraphic style.

So in standard full sentences, keeping the articles is the normal choice.

The dictionary forms are:

• ενεργειακός = energy-related, energetic/energy
• επιθεωρητής = inspector
• κάνω = do, make
• ενεργειακή comes from ενεργειακός
• επιθεώρηση = inspection

For nouns and adjectives, dictionaries usually give the nominative singular form.
For verbs, dictionaries usually give the 1st person singular present form, so κάνω, not κάνει.

Good question. In Greek, some nouns do change visibly between nominative and accusative, but some feminine nouns like επιθεώρηση often look the same in both cases.

So you get:

• η επιθεώρηση = the inspection (nominative)
• την επιθεώρηση = the inspection (accusative)

Even though the noun form looks the same, the article tells you the case:

• η → nominative
• την → accusative

So the grammar is still clear.

Yes. They are closely related words built from the same idea:

• επιθεωρητής = inspector, the person
• επιθεώρηση = inspection, the action/process

This is similar to English pairs like:

• inspect / inspection
• act / action
• teach / teacher

Recognizing these word families can help a lot when learning vocabulary.

Yes, Greek word order is more flexible than English word order because case endings and articles help show the grammatical roles.

This sentence could be rearranged in some contexts, for example to emphasize something, but the neutral, straightforward order is:

• Ο ενεργειακός επιθεωρητής κάνει την ενεργειακή επιθεώρηση.

That is the most natural basic order for a learner to use first: subject + verb + object

A rough pronunciation guide is:

o eneryiakÓS epitheoritÍS KÁni tin eneryiakÍ epitheÓrisi

A few useful notes:

• Stress is marked by the accent:
  • ενεργειακός
  • επιθεωρητής
  • κάνει
  • ενεργειακή
  • επιθεώρηση
• θ sounds like th in think
• η, ι, υ, ει, οι are all usually pronounced like ee in Modern Greek
• αι is pronounced like e in met

So επιθεώρηση is roughly epi-the-Ó-ri-si, not pronounced the way an English speaker might guess from the spelling.

Κάνει is:

• 3rd person singular
• present tense
• from κάνω

So it means:

• he/she/it does
• he/she/it makes

Here it matches the subject ο ενεργειακός επιθεωρητής, which is singular:

• Ο επιθεωρητής κάνει... = The inspector does...

If the subject were plural, the verb would also change:

• Οι ενεργειακοί επιθεωρητές κάνουν... = The energy inspectors do...

Not usually in this sentence. Here ενεργειακός means related to energy, not full of energy in the personality sense.

So:

• ενεργειακός επιθεωρητής = energy inspector
• ενεργειακή επιθεώρηση = energy inspection

A learner might connect it with English energetic, but in this context the meaning is clearly energy-related.