Morgaŭ mia fratino veturos per trajno al alia urbo, kaj mi iros kun ŝi al la stacidomo.

In Esperanto, -os marks the future tense.

• veturi = to travel / to go by vehicle
• iri = to go
• veturos = will travel
• iros = will go

So:

• mia fratino veturos = my sister will travel
• mi iros = I will go

Because the sentence starts with Morgaŭ (tomorrow), the future tense fits naturally.

This is a very common question.

• iri means to go in a general sense
• veturi means to travel by vehicle

So in this sentence:

• mia fratino veturos per trajno = my sister will travel by train
• mi iros kun ŝi al la stacidomo = I will go with her to the station

The first action emphasizes the mode of travel. The second just means go, without focusing on a vehicle.

Per means by means of, using, or by way of. It is the normal preposition for the means or method of doing something.

So:

• per trajno = by train
• per aŭto = by car
• per buso = by bus

Kun means with in the sense of together with someone/something, not usually the method.

Compare:

• Mi veturas per trajno. = I travel by train.
• Mi veturas kun mia fratino. = I travel with my sister.

So per trajno is correct because the train is the means of transport.

Al means to or toward, and it shows direction.

So:

• al alia urbo = to another city

Breaking it down:

• alia = other / another
• urbo = city
• alia urbo = another city

Since the sister is traveling to that city, Esperanto uses al.

Because alia is an adjective describing urbo, and both words stay in the normal form here.

• alia = another
• urbo = city

Together: alia urbo = another city

There is no direct object ending -n here because the phrase is part of a prepositional phrase with al:

• al alia urbo = to another city

In Esperanto, prepositions like al already show the role of the phrase, so you normally do not add -n there.

Because kun is a preposition, and after a preposition you normally use the basic pronoun form.

• ŝi = she
• ŝin = her, as a direct object

Here, the meaning is with her, not I see her or I accompany her as a direct object.

So:

• kun ŝi = with her

Compare:

• Mi vidas ŝin. = I see her.
  Here ŝin is a direct object.
• Mi iras kun ŝi. = I go with her.
  Here ŝi follows the preposition kun.

Esperanto uses la for the, but not as often as English learners sometimes expect.

1. mia fratino

Possessives like mia, via, lia often make la unnecessary.

• mia fratino = my sister

You usually do not say la mia fratino.

2. alia urbo

This means another city, which is indefinite, so no la is used.

• alia urbo = another city

3. la stacidomo

Here the speaker likely means a specific station, probably the train station relevant to the trip.

• stacidomo = station
• la stacidomo = the station

So la appears when the noun is understood as specific.

It is a compound word, which is very typical in Esperanto.

• staci- comes from stacio = station
• domo = house/building

So stacidomo literally means something like station-building.

In normal use, it means railway station or train station.

Esperanto often builds words this way, so learning the parts can help a lot.

Morgaŭ is placed first for emphasis, but Esperanto word order is fairly flexible.

• Morgaŭ mia fratino veturos... = Tomorrow my sister will travel...
• Mia fratino morgaŭ veturos... = My sister will travel tomorrow...

Both are possible.

Putting Morgaŭ first is natural because it sets the time right away. Esperanto often uses word order for emphasis or style more than English does.

Still, the most common order is usually fairly straightforward: time + subject + verb + other information

Yes. Fratino means sister.

It comes from:

• frato = brother / sibling in the traditional basic form brother
• -in- = female suffix
• fratino = sister

This suffix -in- is used to make female forms:

• patro = father
• patrino = mother
• kato = male cat / cat
• katino = female cat

So fratino is a good example of Esperanto word-building.

Because Esperanto adjectives and possessive words do not change for gender the way they do in many European languages.

• mia = my
• via = your
• ŝia = her

So:

• mia fratino = my sister
• mia frato = my brother
• mia libro = my book

The form mia stays the same.

It only changes when grammar requires it, for example:

• miaj libroj = my books
  because plural nouns take plural adjectives too

But there is no special feminine form of mia.

A learner may wonder about that, especially because of ŝ.

ŝi

• ŝ sounds like English sh
• i sounds like ee

So ŝi is pronounced roughly shee

stacidomo

Break it into syllables:

• sta-ci-do-mo

Approximate pronunciation:

• sta = stah
• ci = tsoo/tsi? No — in Esperanto c is always ts, so ci is tsee
• do = doh
• mo = moh

So: stah-tsee-doh-moh

A useful reminder:

• c = ts
• ŝ = sh
• each letter has a consistent sound

Not necessarily.

This part only says:

• mi iros kun ŝi al la stacidomo = I will go with her to the station

That means the speaker accompanies her to the station. It does not say that the speaker will continue the journey by train.

If the speaker were also going by train, Esperanto would usually make that clearer, for example by adding more information after that.

So the sentence most naturally suggests:

• the sister will travel by train to another city
• the speaker will go with her to the station, probably to see her off