Mia frato purigas la tablon, kaj mi purigas la plankon apud la forno.

The -n ending marks the direct object in Esperanto. It shows what is being cleaned.

So:

• purigas la tablon = cleans the table
• purigas la plankon = cleans the floor

Because frato and mi are the doers of the action, they do not take -n.

Because la forno is inside the prepositional phrase apud la forno.

After a preposition like apud (beside / near), the noun normally stays without -n. So:

• apud la forno = near the oven

In Esperanto, a noun after a preposition only gets -n in special cases, especially when you want to show direction toward somewhere rather than simple location.

Purigas is a present-tense verb.

It breaks down like this:

• pur- = clean / pure
• -ig- = make something become
• -as = present tense

So purigas literally means makes clean, which is exactly how Esperanto expresses cleans.

Because purigi is a transitive verb: it means to clean something.

• Mi purigas la tablon = I clean the table

But pura means clean as an adjective, and estas pura means is clean.

• La tablo estas pura = The table is clean

So purigas describes the action of cleaning, not the state of already being clean.

Because mia is a possessive adjective: my.

In Esperanto, possessive words like mia, via, lia, ŝia, nia, ilia behave like adjectives, so they use -a.

That is why you get:

• mia frato = my brother

And like other adjectives, they can agree with the noun in number and case:

• mian fraton = my brother (as a direct object)
• miaj fratoj = my brothers

La is the definite article, meaning the.

Esperanto has only one article: la. It does not have separate words for a or an.

So in this sentence, the speaker is talking about specific things:

• la tablon = the table
• la plankon = the floor
• la forno = the oven

Kaj means and.

It joins the two clauses:

• Mia frato purigas la tablon
• mi purigas la plankon apud la forno

So it connects two actions happening in the same sentence.

Here it should be included, because the subject changes.

In the first clause, the subject is mia frato. In the second clause, the subject is mi. If you left out mi, the sentence could sound incomplete or confusing.

So:

• Mia frato purigas la tablon, kaj mi purigas la plankon... = clear and natural

Most naturally, it describes the floor: the floor near the oven.

Because it comes right after la plankon, many readers will understand it that way first.

So the sentence most naturally means that the floor being cleaned is the one located near the oven. In context, though, location phrases can sometimes feel slightly flexible, so if you wanted to make a different meaning very clear, you could reword the sentence.

Not completely. Esperanto word order is fairly flexible, especially because the -n ending helps show what the object is.

The normal order here is very straightforward:

• subject + verb + object

So:

• Mia frato purigas la tablon
• mi purigas la plankon apud la forno

But other orders are possible for emphasis, especially in careful or literary writing.

Because the sentence joins two full clauses, and some writers like to separate them with a comma.

Both of these are commonly seen:

• Mia frato purigas la tablon, kaj mi purigas la plankon apud la forno.
• Mia frato purigas la tablon kaj mi purigas la plankon apud la forno.

So the comma is acceptable, but many Esperanto writers would also omit it.

Apud is a preposition. It means beside, next to, or near.

It introduces a place relationship:

• apud la forno = near the oven

Esperanto uses many prepositions this way, and they are very important for showing location and relationships between things.