Tenemos cuórum.

Tenemos is the present indicative, first person plural form of tener.

So, grammatically, it means we have.

In full, the sentence could be: Nosotros tenemos cuórum.

But Spanish usually leaves out the subject pronoun nosotros, because the verb ending -emos already shows that the subject is we.

Because Spanish often drops subject pronouns when they are not needed.

In English, you must say we have.
In Spanish, tenemos already tells you the subject is we, so nosotros is usually unnecessary.

• Natural: Tenemos cuórum.
• Also possible, but more emphatic: Nosotros tenemos cuórum.

You would add nosotros only if you want contrast or emphasis, for example: Nosotros tenemos cuórum, pero ellos no.

Yes, Hay cuórum is also natural.

The difference is mainly one of viewpoint:

• Tenemos cuórum = we have quorum
  This focuses on our group / meeting.
• Hay cuórum = there is quorum
  This focuses on the existence of the required number.

Both are common and correct.

What you would not normally say is: Somos cuórum
because cuórum is not something you are; it is something a meeting has or that exists.

Cuórum is a noun, and it is normally masculine in Spanish.

So if you use an article, you would usually say: el cuórum

Examples:

• No se alcanzó el cuórum.
• El cuórum mínimo es de diez personas.

It is usually used in the singular, since it refers to the required minimum presence or number.

Because in this expression, Spanish commonly uses cuórum without an article.

This works a lot like English we have quorum, where English also often uses quorum without a or the.

So:

• Tenemos cuórum. = natural
• Hay cuórum. = natural

If you are talking about a specific required quorum, then an article or modifier is more likely:

• Hemos alcanzado el cuórum necesario.
• Falta el cuórum mínimo.

Because cuórum is the adapted Spanish spelling.

Spanish often adapts foreign or Latin-based words to fit Spanish spelling conventions. The recommended Spanish form is cuórum.

You may still see quorum in some texts, especially formal, legal, academic, or older-style writing, but cuórum is the standard Spanish spelling you should learn and use.

The accent mark shows where the stress goes.

Cuórum is stressed on the first syllable: CUÓ-rum

That written accent is needed because, without it, Spanish spelling rules would not naturally indicate that stress pattern.

So the accent tells you:

• stress the ó
• say CUÓ-rum, not cuo-RUM

A good approximation is:

te-NE-mos KWO-rum

More carefully:

• tenemos → te-NE-mos
• cuórum → KWO-rum

A more Spanish-like pronunciation would be: [teˈnemos ˈkwoɾum]

A few helpful notes:

• the e and o are pure Spanish vowels, not English-style diphthongs
• the r in cuórum is a light Spanish single r sound, not a strong English r

It sounds normal and natural in formal or semi-formal contexts, especially in:

• meetings
• committees
• associations
• assemblies
• boards
• legal or parliamentary situations

In everyday casual speech, people might choose something less technical, such as:

• Ya somos suficientes.
• Ya está suficiente gente.
• Ya puede empezar la reunión.

So Tenemos cuórum is perfectly natural, but it belongs especially to the language of meetings and procedures.

Some very common ones are:

• Hay cuórum. — There is quorum.
• No hay cuórum. — There is no quorum.
• Tenemos cuórum. — We have quorum.
• No tenemos cuórum. — We don’t have quorum.
• Se ha alcanzado el cuórum. — Quorum has been reached.
• No se ha alcanzado el cuórum mínimo. — The minimum quorum has not been reached.

These are all useful in the same kind of setting as Tenemos cuórum.