Acondicionarán el camerino.

It is the simple future tense.

The ending -án here means they will. So acondicionarán means they will prepare / fit out / get ready.

The subject is third person plural: they.

It comes from the infinitive acondicionar.

Spanish usually forms the simple future by adding endings directly to the infinitive:

• acondicionar
  • é → acondicionaré
• acondicionar
  • ás → acondicionarás
• acondicionar
  • á → acondicionará
• acondicionar
  • emos → acondicionaremos
• acondicionar
  • éis → acondicionaréis
• acondicionar
  • án → acondicionarán

So this is a regular future-tense formation.

Because Spanish often leaves out subject pronouns when the verb ending already shows who the subject is.

In acondicionarán, the ending -án already tells you the subject is they.

So Spanish can say:

• Acondicionarán el camerino.

instead of:

• Ellos acondicionarán el camerino.

Adding ellos is possible, but it is usually only used for emphasis, contrast, or clarity.

The accent mark shows where the stress goes: a-condi-cio-NA-rán.

Without the accent mark, Spanish stress rules would suggest a different pronunciation. The written accent makes it clear that the stress falls on the final syllable -rán.

This is very common in future forms such as:

• harán
• tendrán
• llegarán
• acondicionarán

Yes, it is a normal verb, though it is a bit more formal or specific than very basic verbs like preparar or arreglar.

Acondicionar often means things like:

• to prepare
• to fit out
• to make suitable
• to set up
• to get ready for use

The exact English translation depends on context. With a place like el camerino, it often suggests preparing it so it is ready, comfortable, or properly equipped.

In Spain, camerino usually means a dressing room, especially one used by:

• actors
• performers
• singers
• TV presenters

It is a very natural word in that context in Spain.

Because camerino is a masculine noun, so it takes the masculine singular article el.

• el camerino
• un camerino

Even though some nouns ending in -o are not masculine in every case, camerino is masculine in normal usage.

Because el camerino is the direct object of the verb.

The sentence means that something is being done to the dressing room: they will prepare it.

So Spanish uses the direct object form:

• Acondicionarán el camerino.

You would use al camerino if the verb involved movement toward the dressing room, for example:

• Irán al camerino. = They will go to the dressing room.

Yes, that is grammatically correct.

But in normal Spanish, especially when the subject is obvious, Ellos is often omitted:

• Acondicionarán el camerino.

Using Ellos can sound more emphatic, as if you want to say:

• They will prepare the dressing room, not someone else.

So both are possible, but the version without ellos is often the more natural neutral choice.

It usually means a future action: they will prepare the dressing room.

However, in Spanish, the simple future can sometimes also express probability or supposition. For example, in another context a future form might mean something like they must be... or they are probably...

But in this sentence, the most natural reading is the straightforward future: they will prepare it.

Yes. That is also very common.

Spanish often uses two ways to talk about the future:

• Acondicionarán el camerino.
• Van a acondicionar el camerino.

Both can mean they will prepare the dressing room.

Very broadly speaking:

• simple future can sound a bit more formal, written, planned, or neutral
• ir a + infinitive is often very common in everyday speech

In real Spanish from Spain, both are perfectly possible depending on context and style.

A typical Spain pronunciation is approximately:

a-con-di-thyo-na-RÁN el ka-me-RI-no

A few useful pronunciation points:

• the first c in aco- sounds like k
• the ci in -dicio- is pronounced with the Spain th sound /θ/ in most of Spain
• the stress in acondicionarán falls on the last syllable: -rán
• camerino is stressed on ri: ca-me-RI-no

In broad IPA for much of Spain, it would be something like:

[a.kon.di.θjo.naˈɾan el ka.meˈɾi.no]

Yes, but the original order is the most neutral:

• Acondicionarán el camerino.

Spanish word order is flexible, but changes often add emphasis or sound more literary or marked. For example:

• El camerino lo acondicionarán.
  This puts extra focus on the dressing room.

For a basic, neutral statement, verb + object is the most natural choice here.

No. Here it is a normal non-reflexive transitive verb.

The action is done to something:

• acondicionar algo = to prepare / fit out something

So:

• Acondicionarán el camerino.

means they will prepare the dressing room.

A reflexive version like acondicionarse would mean something different and would not fit this sentence.