Ni recikligas la ladskatolojn ĉe la kolektejo.

In Esperanto, -as is the regular present-tense verb ending.

So:

• recikligi = to recycle
• recikligas = recycle / am recycling / are recycling / is recycling

Esperanto does not normally make a separate form for I recycle versus I am recycling. The context tells you whether it is a general action or something happening right now.

That ending shows two things at once:

• -j = plural
• -n = direct object

So:

• ladskatolo = a can
• ladskatoloj = cans
• ladskatolojn = cans, as the thing being recycled

In this sentence, la ladskatolojn is the direct object of recikligas, so it needs -n.

Esperanto marks the direct object with -n. This is called the accusative ending.

In English, word order usually tells you who is doing the action and what receives it:

• We recycle the cans.

In Esperanto, the -n helps show that the cans are receiving the action:

• Ni recikligas la ladskatolojn.

Because of that, Esperanto word order is more flexible than English word order.

It is a compound word:

• lado = sheet metal, tinplate
• skatolo = box, container

So ladskatolo literally means something like metal box/container, but in normal usage it means a can or tin can.

Compound words are very common in Esperanto, and learners often benefit from trying to spot the smaller parts inside a longer word.

Esperanto has:

• la = the
• no indefinite article for a / an

So:

• la ladskatolojn = the cans
• ladskatolojn = cans / some cans

Also, la never changes. It is the same for singular and plural, and it does not change for case.

So you get:

• la ladskatolo
• la ladskatoloj
• la ladskatolojn

The article stays la every time.

Ĉe usually means at, by, or with, depending on context. In this sentence, it means at:

• ĉe la kolektejo = at the collection point / at the collection place

It tells you the location of the recycling action.

This is different from:

• en la kolektejo = in/inside the collection place
• al la kolektejo = to the collection place

So ĉe is a good choice when the idea is simply at that location.

Kolektejo comes from:

• kolekti = to collect
• -ej- = place for something
• -o = noun ending

So kolektejo means a place for collecting.

The suffix -ej- is very useful in Esperanto. It often makes a word meaning place associated with an action or purpose.

For example:

• lerni = to learn → lernejo = school
• kuiri = to cook → kuirejo = kitchen
• kolekti = to collect → kolektejo = collection point/place

Yes. Esperanto word order is fairly flexible, especially because -n marks the direct object.

For example, these are still understandable:

• La ladskatolojn ni recikligas ĉe la kolektejo.
• Ĉe la kolektejo ni recikligas la ladskatolojn.

The most neutral order is still subject-verb-object, which is what your sentence uses:

• Ni recikligas la ladskatolojn ĉe la kolektejo.

So the original version sounds natural and straightforward.

Usually, no. In normal Esperanto, the subject is normally stated.

That is because the verb ending -as only shows tense, not person. So recikligas by itself could mean:

• I recycle
• you recycle
• we recycle
• they recycle
• etc.

Because of that, ni is important if you want to clearly say we.

A rough guide:

• ĉ sounds like ch in church
• e is like e in bed, but cleaner and steadier
• so ĉe sounds roughly like cheh

For -ojn:

• oj sounds roughly like oy
• then add n

So -ojn sounds roughly like oyn.

That means ladskatolojn ends with something like -to-loyn.

Also, Esperanto stress is always on the second-to-last syllable:

• re-ci-KLI-gas
• lad-ska-TO-lojn
• ko-lek-TE-jo

It can mean either one, depending on context.

Esperanto -as covers both the simple present and the present progressive that English often separates.

So Ni recikligas la ladskatolojn could mean:

• We recycle the cans (general/habitual)
• We are recycling the cans (right now)

Usually the situation makes it clear. If needed, extra words can make the time meaning more specific, but in ordinary sentences -as is often enough.