La bremso bezonas novan bremsblokon.

In Esperanto, -o is the normal ending for a noun. So:

• bremso = a brake
• bremsbloko = a brake block

This is one of the most basic and useful patterns in Esperanto: if you see -o, you can usually assume the word is a noun.

The -n marks the direct object of the verb.

Here, the verb is bezonas = needs, and the thing being needed is novan bremsblokon. That whole phrase is the direct object, so it gets the accusative ending:

• bremsbloko → bremsblokon
• nova → novan

In Esperanto, adjectives agree with the nouns they describe, so if the noun gets -n, the adjective gets -n too.

Because la bremso is the subject, not the object.

In this sentence:

• La bremso = the thing doing the needing
• novan bremsblokon = the thing being needed

Only the direct object takes -n, so bremso stays without it.

Because nova bremsbloko would be just the basic noun phrase form, without object marking.

Since the phrase is the direct object after bezonas, both words must show agreement:

• nova → novan
• bremsbloko → bremsblokon

So novan bremsblokon means a new brake block as the object of the sentence.

La is the definite article, meaning the.

Esperanto has one article: la. It does not have an indefinite article like English a/an.

So:

• la bremso = the brake
• bremsbloko can mean a brake block or just brake block, depending on context

That is why the sentence has la for the brake, but no separate word for a new brake block.

It is a compound word.

It is built from:

• brems- = brake / braking
• blok = block
• -o = noun ending

So bremsbloko literally means something like brake-block.

This is very common in Esperanto: words are often built by combining meaningful parts.

In Esperanto compounds, the earlier element often appears as a root form without the full noun ending -o.

So instead of:

• bremso + bloko → bremsobloko

you more naturally get:

• brems- + blok + o → bremsbloko

This root-based compounding is very normal in Esperanto and makes words shorter and more flexible.

Usually, yes. Bezoni is a transitive verb, so it normally takes a direct object without a preposition.

Examples:

• Mi bezonas helpon. = I need help.
• Ŝi bezonas tempon. = She needs time.
• La bremso bezonas novan bremsblokon. = The brake needs a new brake block.

So English speakers should notice that Esperanto does not use a preposition here.

Yes, Esperanto word order is fairly flexible because the -n ending helps show what the object is.

The normal order is:

• La bremso bezonas novan bremsblokon.

But you could also say:

• Novan bremsblokon bezonas la bremso.

That is still understandable because novan bremsblokon has the object marking -n.

Even so, the usual subject–verb–object order is the safest and most natural for learners.

It is an adjective.

The basic form is nova = new. Adjectives in Esperanto end in -a.

Because it describes a noun that is in the accusative, it also takes -n:

• nova bremsbloko = a new brake block
• novan bremsblokon = a new brake block (as direct object)

So novan shows both:

• -a = adjective
• -n = accusative agreement

Bezonas is the present tense form of bezoni.

In Esperanto:

• -as = present tense
• -is = past tense
• -os = future tense

So:

• bezonas = needs / is needing
• bezonis = needed
• bezonos = will need

The subject is not shown by changing the verb, unlike in English. The verb form stays the same regardless of person:

• mi bezonas
• vi bezonas
• la bremso bezonas

That makes Esperanto verb conjugation much simpler than English.