La konsulo redonas originalon kaj konservas kopion.

In Esperanto, -o marks a noun. So konsulo means consul as a noun.

A few related patterns:

• konsulo = a consul
• konsuloj = consuls
• konsula = consular / relating to a consul
• konsulejo = consulate

This -o ending is one of the most basic and regular parts of Esperanto grammar.

La is the definite article, meaning the.

So:

• La konsulo = the consul

It appears only before konsulo because the sentence specifically identifies that person as a known or definite consul.

Esperanto does not have an indefinite article like English a/an. So:

• konsulo can mean a consul or simply consul, depending on context.

Also, Esperanto does not always use la as often as English uses the. The objects originalon and kopion appear without la, which can sound natural in Esperanto even if English would often say the original and a copy or the copy.

Because re- is a prefix meaning again or back.

So:

• doni = to give
• redoni = to give back, return

And redonas is the present-tense form:

• mi redonas = I give back / I am giving back
• la konsulo redonas = the consul gives back / is giving back

So redonas is more precise than donas here, because it shows that the item is being returned, not just given.

-as marks the present tense in Esperanto.

So:

• redonas = gives back / is giving back
• konservas = keeps / preserves / is keeping

Esperanto uses the same present-tense ending for all persons:

• mi redonas = I give back
• vi redonas = you give back
• li/ŝi redonas = he/she gives back
• ili redonas = they give back

There is no change like English I keep / he keeps. The verb form stays the same.

The -n ending marks the direct object in Esperanto.

In this sentence, the consul is doing something to two things:

• returning the original
• keeping a copy

So those nouns are direct objects:

• originalon
• kopion

Without the -n, they would just be plain nouns. With the -n, Esperanto clearly marks them as the things affected by the verbs.

Breakdown:

• originalo = original
• originalon = original, as a direct object
• kopio = copy
• kopion = copy, as a direct object

In Esperanto, originalo is clearly a noun because of the -o ending.

So here it means the original document/item, not original as an adjective.

Compare:

• originalo = an original, the original
• originala = original (adjective)

For example:

• originala dokumento = an original document
• la originalo = the original

So in your sentence, originalon means the original as a thing.

Because it is the direct object of konservas.

• konsulo konservas kopion = the consul keeps a copy

Since kopio is what is being kept, it takes the object ending -n:

• kopio → kopion

This is exactly the same reason originalo becomes originalon.

Yes. Kaj means and.

So:

• originalon kaj konservas kopion = the original and keeps a copy

It joins the two verb phrases:

• redonas originalon
• konservas kopion

Both actions have the same subject, la konsulo.

Because Esperanto often leaves article use more to context than English does.

Here are the main points:

• originalon without la can still be understood from context as the original
• kopion without la can naturally mean a copy

If the speaker wanted to make both fully definite, they could say:

• La konsulo redonas la originalon kaj konservas la kopion.

That would sound more like The consul returns the original and keeps the copy.

But the shorter version is very natural, especially when the meaning is already clear from context.

Yes, Esperanto word order is fairly flexible because grammatical roles are shown by endings, especially the object ending -n.

The normal, neutral order here is:

• La konsulo redonas originalon kaj konservas kopion.

But other orders are possible for emphasis, for example:

• Originalon la konsulo redonas kaj kopion konservas.

That is less neutral and more emphatic or literary.

For learners, it is best to use the standard order first:

• subject + verb + object

So this sentence is a very normal and straightforward example.

Usually yes in this sentence, but the core meaning of konservi is a bit broader: to keep, preserve, retain, save depending on context.

Here, keeps is the most natural English translation:

• konservas kopion = keeps a copy

In other contexts, konservi can mean things like:

• konservi trankvilon = keep calm
• konservi dokumentojn = preserve/keep documents
• konservi monon = save money

So in this sentence, keeps is exactly the right idea.

In Esperanto, stress is always on the second-to-last syllable.

So these words are stressed like this:

• la kon-SU-lo
• re-DO-nas
• o-ri-gi-NA-lon
• kaj
• kon-SER-vas
• ko-PI-on

That fixed stress pattern is one of the things that makes Esperanto pronunciation very regular.

Yes.

Esperanto present tense -as does not distinguish between simple present and present progressive the way English sometimes does.

So:

• redonas can mean gives back
• or is giving back

And:

• konservas can mean keeps
• or is keeping

The exact English translation depends on context. In a general statement, gives back and keeps are usually the best choices.