La hundo havas longan voston.

Here is the breakdown:

• la = the
• hundo = dog
• havas = has
• longan = long with an accusative -n
• voston = tail with an accusative -n

Grammatically:

• La hundo is the subject: the dog
• havas is the verb: has
• longan voston is the direct object: a long tail

So the structure is:

the dog + has + long tail

Esperanto has a definite article, la, which means the.

So:

• la hundo = the dog
• hundo by itself can mean dog or a dog, depending on context

Esperanto does not have a separate indefinite article like English a or an.

That means:

• hundo = a dog / dog
• la hundo = the dog

In Esperanto, -as marks the present tense.

So:

• havas = has / have
• dictionary form: havi = to have

A very important point for English speakers: Esperanto verbs do not change depending on the subject.

So all of these use havas:

• mi havas = I have
• vi havas = you have
• li havas = he has
• la hundo havas = the dog has

Unlike English, there is no special form like has versus have. The ending -as always just means present tense.

The -n marks the direct object, called the accusative.

In this sentence, the dog is the one doing the having, and the tail is the thing being had. So tail is the direct object.

• vosto = tail
• voston = tail as a direct object

So longan voston is the object of havas.

This is one of the most basic Esperanto patterns:

• subject = no -n
• direct object = -n

Because adjectives in Esperanto agree with the nouns they describe.

Since voston is:

• singular
• accusative

the adjective describing it must match:

• longa vosto = a long tail
• longan voston = a long tail as a direct object

This agreement happens regularly in Esperanto. If the noun changes, the adjective changes too.

Because hundo is the subject, not the direct object.

In La hundo havas longan voston:

• la hundo = the subject
• longan voston = the object

Only the direct object gets -n here.

So:

• hundo = dog as subject
• voston = tail as object

This helps Esperanto show clearly who is doing the action and what is receiving it.

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

The most neutral order is:

• La hundo havas longan voston.

But other orders are possible, such as:

• Longan voston havas la hundo.

That said, the normal beginner-friendly order is subject + verb + object, just like English. So La hundo havas longan voston is the most straightforward version.

No, not in standard Esperanto.

Because longa vosto is the direct object, both words must show that:

• longa becomes longan
• vosto becomes voston

So the correct form is:

• La hundo havas longan voston.

Not:

• La hundo havas longa vosto.

A simple pronunciation guide is:

• La = lah
• hundo = HOON-doh
• havas = HAH-vahs
• longan = LON-gahn
• voston = VOS-tohn

A few useful pronunciation notes:

• Stress is on the second-to-last syllable: HUN-do, HA-vas, LON-gan, VOS-ton
• u sounds like oo in food
• a sounds like a in father
• o sounds like o in a pure oh
• g is always hard, as in go

So the whole sentence is approximately:

lah HOON-doh HAH-vahs LON-gahn VOS-tohn