La uzita tekruĉo havas makulon.

Because uzita is describing tekruĉo, so it acts like an adjective.

In Esperanto, adjectives end in -a, and they agree with the noun they describe:

• tekruĉo = a teapot
• uzita tekruĉo = a used teapot

So even though uzita comes from a verb, here it is being used adjectivally.

Uzita is a participle, specifically the past passive participle of uzi (to use).

Breakdown:

• uzi = to use
• -it- = having been done / already done
• -a = adjective ending

So uzita means used in the sense of having been used.

This is different from:

• uzata = being used / in use
• uzota = going to be used

So la uzita tekruĉo means the teapot is already in a used state, not necessarily that someone is using it right now.

La is the Esperanto definite article, like the in English.

So la uzita tekruĉo refers to a specific used teapot, not just any used teapot.

Esperanto has:

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

So:

• tekruĉo = a teapot / teapot
• la tekruĉo = the teapot

The -n marks the direct object.

In this sentence, the teapot is the thing that has, and the stain is the thing being had. So makulo becomes makulon.

Breakdown:

• makulo = stain, spot
• makulon = stain/spot as a direct object

This is very common in Esperanto:

• La knabo vidas la hundon.
• Mi havas libron.
• La uzita tekruĉo havas makulon.

The -n helps show the sentence roles clearly.

Because tekruĉo is the subject, not the direct object.

In this sentence:

• La uzita tekruĉo = the subject
• havas = the verb
• makulon = the direct object

Only the direct object takes -n here.

Tekruĉo is a compound word.

It is built from:

• teo = tea
• kruĉo = jug, pitcher, pot

In compounds, Esperanto often drops the ending of the first element:

• teo + kruĉo → tekruĉo

The main word is usually the last part, so a tekruĉo is a kind of kruĉo associated with tea.

This kind of word-building is very common in Esperanto.

Because Esperanto verbs do not change according to person or number.

So:

• mi havas = I have
• vi havas = you have
• li havas = he has
• ili havas = they have

The ending -as always marks the present tense.

That makes Esperanto much simpler than English here, since English has have/has, but Esperanto uses havas for all subjects.

Esperanto usually does not use an indefinite article.

English distinguishes:

• a stain
• the stain

Esperanto only has:

• makulo / makulon = a stain, stain
• la makulo / la makulon = the stain

So havas makulon naturally means has a stain or just has stain, depending on context.

Yes, Esperanto word order is fairly flexible because endings show the grammar.

The normal, neutral order here is:

• La uzita tekruĉo havas makulon.

But other orders are possible, for example:

• Makulon havas la uzita tekruĉo.

That version puts more emphasis on makulon.

Still, learners should usually stick with the standard subject–verb–object order unless they have a reason to change it.

This is a very important distinction.

• uzita = used, already used, having been used
• uzata = being used, in use

So:

• la uzita tekruĉo = the used teapot
• la uzata tekruĉo = the teapot that is being used

The difference comes from the participle:

• -it- = completed action
• -at- = ongoing action

English often uses used in more than one way, so this Esperanto distinction can be helpful.

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

So:

• uzita → u-ZI-ta
• tekruĉo → te-KRU-ĉo
• makulon → ma-KU-lon
• havas → HA-vas

This rule is extremely regular, which makes pronunciation much easier.

Makulo can mean a stain, spot, mark, or blemish, depending on context.

So in this sentence it suggests that the teapot has some visible mark on it. The exact English word depends on what kind of mark it is:

• a stain from tea
• a spot on the surface
• a blemish or discoloration

Esperanto words often have a broad core meaning, and context helps narrow it down.

You generally would not say it that way unless you had a special stylistic reason.

The normal placement is for the adjective or participle to come directly before or after the noun:

• la uzita tekruĉo
• la tekruĉo uzita (possible, but less neutral)

Putting uzita after tekruĉo can sound more marked or literary. For a learner, la uzita tekruĉo is the safest and most natural choice.

It is simply stating a fact about the teapot: it has a stain.

Nothing in the sentence says whether the stain is permanent, recent, removable, important, or surprising. Esperanto here is as neutral as English would be in a similar sentence. Context would decide that.

Also, uzita describes the teapot as already used, but that does not necessarily mean old or damaged—it just means it has been used before.