Las existencias incluyen un excedente.

In this sentence, las existencias means stock, inventory, or goods on hand.

It can be a false friend for English speakers, because it looks like existences, but that is usually not the meaning here. In business or accounting Spanish, existencias commonly refers to the items a company has in stock.

So in a sentence like this, think of:

• las existencias = inventory / stock
• not usually existences

Spanish often uses the definite article more often than English does.

Here, las existencias refers to the inventory / the stock, meaning a specific set of stock already understood from context.

So:

• Las existencias incluyen un excedente = The inventory includes a surplus
• Existencias incluyen... would sound incomplete or unnatural in normal Spanish

Also, existencias is a feminine plural noun, so it takes las.

In Spanish, existencias is very often used in the plural when talking about inventory or stock as a business concept.

Even though English may use a singular mass noun like inventory or stock, Spanish commonly says:

• las existencias
• las existencias de un almacén
• control de existencias

So this is something you should mostly learn as a standard expression.

You can tell from the article las, which is the feminine plural form of the.

So:

• la existencia = the existence / the stock item / the inventory entry
• las existencias = the inventory / the stock

Many nouns ending in -a are feminine, and existencia follows that pattern.

Incluyen is the third-person plural present tense of incluir (to include).

The subject is las existencias, which is plural, so the verb must also be plural:

• la existencia incluye = the inventory item includes
• las existencias incluyen = the inventories / the stock include

So incluyen means include or are including, depending on context, but here it is simply include.

It is mostly regular, but it has a spelling change in some forms.

The infinitive is incluir. In the present tense:

• incluyo
• incluyes
• incluye
• incluimos
• incluís
• incluyen

Notice the y in forms like incluyo and incluyen. This happens because of the vowel combination.

So it is not completely irregular, but it does have a predictable spelling/pronunciation change.

Excedente means surplus, excess, or amount left over.

In this sentence, un excedente suggests that the inventory includes some extra amount beyond what is needed or expected.

Depending on context, excedente can be:

• a surplus
• an excess
• a leftover amount

In business or accounting language, surplus is often the best translation.

Because excedente is masculine here.

Some Spanish nouns ending in -e can be either masculine or feminine, so you often need to learn the gender with the noun itself. In this case:

• un excedente

That tells you the noun is masculine in this usage.

Grammatically, it is possible, but incluyen is better here.

Why?

• incluir means to include, which fits naturally when one thing contains or consists of another
• tener means to have, which is more general

So:

• Las existencias incluyen un excedente = more precise and formal
• Las existencias tienen un excedente = understandable, but less specific in tone

In business or technical Spanish, incluyen sounds more natural.

The word order is very standard Spanish:

• Las existencias = subject
• incluyen = verb
• un excedente = direct object

So the structure is:

Subject + verb + object

That is the most neutral and common order in Spanish, just as in English.

No. The personal a is only used before specific human beings or sometimes personified animals.

Here, un excedente is a thing, not a person, so there is no personal a.

Correct:

• Las existencias incluyen un excedente

Not:

• Las existencias incluyen a un excedente

In standard Peninsular Spanish, a common pronunciation would be roughly:

las ek-sis-TEN-thyas in-KLU-yen oon ek-the-DEN-te

A few Spain-specific pronunciation points:

• ci in existencias is often pronounced like thy in much of Spain
• ce in excedente is also often pronounced with that th sound
• ll in incluyen is usually pronounced like y

So in much of Spain:

• existencias → ek-sis-TEN-thyas
• excedente → ek-the-DEN-te

Yes. While existencias often means inventory/stock in commercial contexts, the singular existencia can also mean existence in a more abstract sense.

For example:

• la existencia humana = human existence

But in business Spanish:

• las existencias = stock / inventory

So context is very important here.

It sounds neutral to formal, especially because of the vocabulary:

• existencias
• incluyen
• excedente

These are common in business, logistics, accounting, and written reports. In everyday conversation, someone might choose simpler wording depending on context, but this sentence is perfectly normal and natural in professional Spanish.