Mia fratino loĝas en trankvila kvartalo apud la rivero.

In Esperanto, a possessive word like mia usually takes the place of la. So mia fratino means my sister, and adding la would normally be unnecessary.

• mia fratino = my sister
• la fratino = the sister

Using both together is not the normal basic pattern.

The suffix -ino marks a female person or animal.

So:

• frato = brother
• fratino = sister

This is a very common Esperanto pattern:

• patro = father
• patrino = mother
• knabo = boy
• knabino = girl

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

The verb here is:

• loĝi = to live, to reside
• loĝas = lives / is living

So Mia fratino loĝas... means My sister lives...

Other common verb endings are:

• -is = past
• -os = future
• -us = conditional
• -u = command or wish
• -i = infinitive

They describe two different relationships of place.

• en = in
• apud = beside, next to, by

So:

• en trankvila kvartalo = in a quiet neighborhood
• apud la rivero = beside the river

Together, the sentence says the sister lives in a neighborhood that is beside the river.

Because this phrase is not a direct object, and it is not showing motion into somewhere.

In Esperanto:

• -a marks an adjective
• -n marks the accusative, which is often used for a direct object, and sometimes for motion toward a place

Here, en trankvila kvartalo describes location, not movement. So no -n is needed.

Compare:

• Ŝi loĝas en trankvila kvartalo. = She lives in a quiet neighborhood.
• Ŝi translokiĝis en trankvilan kvartalon. = She moved into a quiet neighborhood.

Because trankvila is an adjective, and Esperanto adjectives end in -a.

• trankvila = quiet, calm
• kvartalo = neighborhood

Adjectives also agree with the noun in number and case. Since kvartalo is singular and has no -n, the adjective is also singular and has no -n:

• trankvila kvartalo

If the noun changed, the adjective would change too:

• trankvilaj kvartaloj = quiet neighborhoods
• trankvilan kvartalon = a quiet neighborhood (as direct object or with motion)

Because trankvila kvartalo is being treated as indefinite: a quiet neighborhood.
But la rivero is definite: the river.

So the sentence means:

• en trankvila kvartalo = in a quiet neighborhood
• apud la rivero = beside the river

Esperanto uses la for the, but it has no separate word for a/an. If there is no article, the meaning is often indefinite.

Kvartalo usually means neighborhood, district, or an area of a town or city.

It does not usually mean the whole town or city. So this sentence is more specific than saying someone lives in a city.

• urbo = city, town
• kvartalo = neighborhood, district

Not completely. Esperanto word order is fairly flexible, but the normal order here is very natural:

• Mia fratino loĝas en trankvila kvartalo apud la rivero.

That said, other orders can be used for emphasis or style, as long as the grammar stays clear. For example, you could move location phrases around, but the original version is the most straightforward for a learner.

Also, adjectives normally come before the noun:

• trankvila kvartalo

Loĝas is pronounced roughly LOH-zhas or LOH-jas, depending on how you approximate it in English.

Important points:

• ĝ sounds like the s in measure or the g in genre
• stress in Esperanto falls on the second-to-last syllable

So loĝas has two syllables:

• lo-ĝas

and the stress is on LO.

Yes. In many cases, either works in English.

• Mia fratino loĝas... can mean My sister lives...
• Depending on context, it could also be understood as My sister is living...

But in a sentence like this, lives is usually the most natural English translation because it describes where she resides.

Esperanto does not have grammatical gender like many European languages do. Nouns are not automatically masculine, feminine, or neuter.

The only explicitly female marking here is -ino in fratino. The other nouns are just ordinary nouns:

• kvartalo = neighborhood
• rivero = river

So unlike in some languages, words like river or neighborhood are not grammatically gendered in Esperanto.