Curriculum longum est.

Because curriculum is a neuter singular noun, and the adjective has to agree with the noun it describes.

In Latin, adjectives match their nouns in:

• gender
• number
• case

So here:

• curriculum = neuter, singular, nominative
• longum = neuter, singular, nominative

If the noun were masculine, you might see longus instead. But with a neuter noun like curriculum, the correct form is longum.

It is nominative singular.

The nominative case is commonly used for:

• the subject of the sentence
• a predicate noun/adjective construction with to be

In Curriculum longum est, curriculum is the subject: it is the thing being described as long.

Est means is.

It is the third-person singular present tense form of esse, which means to be.

So:

• sum = I am
• es = you are
• est = he/she/it is

Since curriculum is singular, Latin uses est.

Because Latin word order is much more flexible than English word order.

English usually prefers:

• a long curriculum

Latin can often place the adjective either before or after the noun:

• curriculum longum
• longum curriculum

Both can work, though one order may sound more natural depending on style or emphasis.

So curriculum longum est is perfectly normal Latin.

Latin often puts the verb near the end of the sentence, especially in simple statements.

So:

• Curriculum longum est = normal Latin order
• literally: Curriculum long is

But Latin is flexible, and other orders are also possible:

• Longum curriculum est
• Est curriculum longum

The endings on the words do much of the grammatical work, so Latin does not rely as heavily on word order as English does.

Classical Latin does not have articles like English the or a/an.

So curriculum can mean:

• a curriculum
• the curriculum
• sometimes just curriculum

You figure out which one is meant from the context.

That is very normal in Latin.

Here it is singular.

You can tell because:

• the noun is curriculum
• the adjective is longum
• the verb is est = is

A plural version would be:

• curricula longa sunt = the curricula are long

So:

• curriculum = singular
• curricula = plural

We know because of the sentence structure and agreement.

In Curriculum longum est:

• curriculum is the subject
• longum agrees with it in gender, number, and case
• est links the subject with its description

So longum is a predicate adjective: it tells us what the curriculum is like.

In other words, the sentence means:

• The curriculum is long not
• The curriculum is a long thing as a separate noun phrase

Sometimes Latin can omit forms of to be, especially in poetry or very compressed style, but in ordinary beginner prose you usually keep est.

So for a basic sentence, Curriculum longum est is the standard full form.

If you saw Curriculum longum, it might be understood in some contexts, but for learning purposes it is better to read and write the complete sentence with est.

A common classroom pronunciation would be roughly:

koo-RRI-ku-lum LON-gum est

More classically:

• c is always hard, like k
• u is pronounced like oo
• g is always hard

So:

• curriculum ≈ koo-RRI-koo-lum
• longum ≈ LON-goom
• est ≈ est

Pronunciation systems vary a little, but the main point is that the c in curriculum is not soft like English s.