Civitanoj pagas imposton.

In Esperanto, -o marks a noun, and -j marks the plural.

So:

• civitano = a citizen
• civitanoj = citizens

The ending -oj is just -o + -j.

The -n ending marks the direct object: the thing directly affected by the action.

In Civitanoj pagas imposton:

• civitanoj = the people doing the action
• pagas = pay
• imposton = the thing being paid

So imposton gets -n because it is the object of pagas.

Because civitanoj is the subject, not the object.

Esperanto usually marks:

• subject: no -n
• direct object: takes -n

So:

• Civitanoj = the ones who pay
• imposton = what they pay

If you added -n to civitanoj, it would change its grammatical role.

The ending -as shows the present tense.

So pagas means pay / are paying / do pay, depending on context.

Some useful comparisons:

• pagas = pay(s), is/are paying
• pagis = paid
• pagos = will pay
• pagus = would pay

The form pagas itself does not tell you whether the action is habitual or happening right now; context does that.

No, Esperanto word order is fairly flexible, because the -n ending helps show what is the object.

So all of these are possible:

• Civitanoj pagas imposton.
• Imposton pagas civitanoj.

Both can mean the same thing grammatically.

However, Civitanoj pagas imposton is the most neutral and natural order for beginners: subject + verb + object.

Esperanto has:

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

So:

• la civitanoj = the citizens
• civitanoj = citizens / some citizens, depending on context
• la imposto = the tax
• imposto = a tax / tax

In Civitanoj pagas imposton, there is no la, so the sentence is more general or indefinite.

Yes, if the context calls for it.

For example:

• La civitanoj pagas imposton. = The citizens pay a tax.
• Civitanoj pagas la imposton. = Citizens pay the tax.
• La civitanoj pagas la imposton. = The citizens pay the tax.

Whether you use la depends on whether you mean something specific and already identifiable.

The singular forms are:

• civitano = citizen
• imposto = tax

So the singular version of the sentence would be:

• Civitano pagas imposton. = A citizen pays a tax.

If both were plural, it would be:

• Civitanoj pagas impostojn. = Citizens pay taxes.

Notice that plural object = -ojn.

A simple guide:

• civitanoj ≈ tsee-vee-TAH-noy
• pagas ≈ PAH-gahs
• imposton ≈ eem-POHS-tohn

A few pronunciation tips:

• c is always like ts in cats
• j is like English y
• stress is always on the second-to-last syllable

So:

• ci-vi-TA-noj
• PA-gas
• im-POS-ton

The dictionary forms are usually:

• civitano = citizen
• pagi = to pay
• imposto = tax

In actual sentences, Esperanto changes the endings to show grammar:

• civitano → civitanoj for plural
• pagi → pagas for present tense
• imposto → imposton for direct object

This is very typical of Esperanto: the ending carries a lot of grammatical information.

It can often mean either, depending on context.

Esperanto does not always force the same distinction English does. So imposton might be understood as:

• a tax
• tax in a general sense

If you want to be more clearly plural, you would say impostojn. If you want to be clearly specific, you would use la imposton only if the context justifies it.

Yes. It is completely grammatical and natural.

It is a simple example of the basic Esperanto pattern:

• subject: civitanoj
• verb: pagas
• direct object: imposton

It is the kind of sentence often used to teach the core endings:

• -oj = plural noun
• -as = present tense verb
• -n = direct object