Az ellenőrzés holnap reggel lesz.

Hungarian has two forms of the definite article:

• a before most consonant sounds
• az before vowel sounds

Since ellenőrzés begins with a vowel sound, Hungarian uses az.

So:

• az ellenőrzés = the inspection / the check

This is similar to English a/an, except Hungarian does it with the definite article instead.

Ellenőrzés is a noun meaning inspection, check, checking, or sometimes control/check-up, depending on context.

In different situations, it could refer to things like:

• a workplace inspection
• a ticket check
• a quality control check
• an official inspection

So in this sentence, it does not necessarily mean only one very specific kind of check; the exact meaning depends on context.

Lesz is the future-tense form of van (to be).

So:

• van = is / exists
• lesz = will be

In this sentence:

• Az ellenőrzés holnap reggel lesz.
• literally: The inspection tomorrow morning will be.
• natural English: The inspection will be tomorrow morning.

Here lesz can also feel like will take place or will happen, not just simple will be.

That is a very common question. In Hungarian, the verb van is often omitted in the present tense, third person when it links a subject to a noun, adjective, or adverb.

For example:

• Az ellenőrzés holnap reggel. — this is not correct here
• Az ellenőrzés fontos. = The inspection is important.
  Here the present-tense is can be omitted in Hungarian.

But in the future tense, you must use the verb:

• Az ellenőrzés holnap reggel lesz.

So the omission happens in some present-tense sentences, but not here.

Holnap reggel means tomorrow morning.

It is made of:

• holnap = tomorrow
• reggel = in the morning / morning

Hungarian often uses time expressions without extra case endings when they function as adverbials of time.

So:

• ma reggel = this morning
• holnap reggel = tomorrow morning
• tegnap reggel = yesterday morning

This is just the normal idiomatic way to say it.

Yes, but not in the same rigid way as in English.

Az ellenőrzés holnap reggel lesz is a natural neutral sentence. It presents:

• Az ellenőrzés = the topic / what we are talking about
• holnap reggel = the time
• lesz = will be

You can change the word order to shift emphasis. For example:

• Holnap reggel lesz az ellenőrzés.
  = The inspection will be tomorrow morning.
  This puts more focus on tomorrow morning.

• Az ellenőrzés lesz holnap reggel.
  This is possible in some contexts, but less neutral and more marked.

So yes, word order matters, but mostly for focus and emphasis, not basic grammatical correctness.

Yes. That is a very natural English translation.

Hungarian often uses lesz in a broader way than English will be. In event-type sentences, it can mean:

• will be
• will happen
• will take place

So for this sentence, all of these can fit depending on context:

• The inspection will be tomorrow morning.
• The inspection will take place tomorrow morning.
• There will be an inspection tomorrow morning.
  (This last one is a little different in structure, but close in meaning.)

Yes, absolutely.

That version is very natural and often preferred if the main new information is the time:

• Holnap reggel lesz az ellenőrzés.
• Tomorrow morning is when the inspection will be.

Compared with:

• Az ellenőrzés holnap reggel lesz.

the difference is mostly about emphasis:

• Az ellenőrzés... = we start with the inspection
• Holnap reggel... = we start with the time

Both are correct.

Roughly, ellenőrzés is pronounced something like:

• EL-len-err-zhaysh

A few helpful points:

• e is like e in bed, but cleaner
• ő is a long front rounded vowel; English does not really have it
• zs is pronounced like the s in measure
• é is a long vowel, somewhat like ay in say, but without the English glide
• stress in Hungarian is always on the first syllable:
  EL-len-őr-zés

You do not need perfect pronunciation immediately, but it helps to notice that ő and é are long vowels and that zs is a single sound.

It is a noun.

You can tell because:

• it follows the article az
• it is the subject of the sentence
• the verb is lesz

So the structure is:

• Az ellenőrzés = The inspection
• holnap reggel = tomorrow morning
• lesz = will be

If you wanted a related verb, Hungarian uses ellenőriz = to check / to inspect.

So:

• ellenőriz = verb
• ellenőrzés = noun