Az utolsó ellenőrzés holnap lesz.

Hungarian has two forms of the definite article: a and az. They mean the same thing, but the form changes depending on the next sound.

• a is used before a consonant: a ház
• az is used before a vowel: az utolsó

Since utolsó begins with a vowel, the sentence uses az.

Here utolsó means final / the one at the end.

That is an important distinction in Hungarian:

• utolsó = final, last in a sequence
• legutóbbi = most recent, latest so far

So Az utolsó ellenőrzés holnap lesz means the final inspection will be tomorrow, not the most recent inspection.

In Hungarian, adjectives usually do not agree with the noun the way they do in many Indo-European languages. When an adjective comes directly before a noun, the noun usually carries the grammatical endings, not the adjective.

So:

• az utolsó ellenőrzés
• az utolsó ellenőrzésen
• az utolsó ellenőrzések

The adjective utolsó stays the same here.

Ellenőrzés is a noun meaning inspection, check, or checking, depending on context.

It is related to the verb ellenőriz, meaning to inspect / to check.

A very common Hungarian pattern is:

• verb + -ás / -és → action noun

So:

• ellenőriz = to inspect/check
• ellenőrzés = inspection/checking

Because holnap already means tomorrow by itself. Hungarian often uses bare time words where English uses a preposition or a special structure.

So:

• ma = today
• holnap = tomorrow
• tegnap = yesterday

You do not need an extra word for on in this sentence.

Lesz is the future form of lenni / van, the verb to be.

So:

• van = is
• lesz = will be

In this sentence, lesz means will be:

• Az utolsó ellenőrzés holnap lesz.
• The final inspection will be tomorrow.

Hungarian does not need a separate word exactly like English will here, because the future meaning is built into lesz.

Hungarian often forms the future with fog + infinitive, but to be commonly uses lesz instead.

For example:

• menni fog = will go
• dolgozni fog = will work
• lesz = will be

So in this sentence, lesz is the normal and natural choice.

Yes. That version is also correct.

Hungarian word order is flexible, and changes in word order often reflect emphasis or what the speaker is treating as the topic.

• Az utolsó ellenőrzés holnap lesz.
  This starts with the final inspection as the topic.

• Holnap lesz az utolsó ellenőrzés.
  This brings tomorrow forward, which can make the time feel more prominent.

Both are natural; the difference is mainly in emphasis and information structure.

It is in the nominative form, which is the basic dictionary form.

Here ellenőrzés is the subject of the sentence, so it appears without any extra case ending:

• ellenőrzés = inspection
• ellenőrzést = inspection, as a direct object
• ellenőrzésen = on/at the inspection

In this sentence, the plain form is exactly what you expect.

A careful pronunciation is roughly:

[ɒz ˈutoloː ˈɛlːɛnørzeːʃ ˈholnɒp lɛs]

A few useful pronunciation points:

• sz = English s
• s = English sh
• zs = the sound in measure
• ő is a long rounded vowel, similar to German/French ö
• Stress normally falls on the first syllable of each Hungarian word

So especially note:

• lesz sounds like less
• ellenőrzés contains zs and ends with s, so the middle and final sounds are different from English spelling expectations