Po pracy wsiadam do autobusu i jadę do domu.

Because the preposition po meaning after requires the locative case in Polish.

• praca = work
• locative singular = pracy

So:

• po pracy = after work

This is a very common pattern:

• po szkole = after school
• po obiedzie = after lunch
• po filmie = after the film

Be careful: po can mean different things in different contexts, and the case may change depending on the meaning. In this sentence, it means after, so po pracy is correct.

Wsiadam is the 1st person singular present tense of wsiadać.

It means:

• I get in
• I get on
• I am boarding

With vehicles, English often says get on a bus/train/tram, while Polish uses wsiadać do for entering most enclosed vehicles.

So:

• wsiadam do autobusu = I get on the bus / I board the bus

In this sentence, it describes the first action in the sequence.

Because wsiadać normally goes with do + genitive.

Pattern:

• wsiadać do + [genitive] = to get into / onto

Examples:

• wsiadam do autobusu = I get on the bus
• wsiadam do samochodu = I get into the car
• wsiadam do pociągu = I get on the train

Here:

• dictionary form: autobus
• genitive singular: autobusu

So do autobusu is grammatically required after wsiadam.

Because jechać is used for going by vehicle, while iść is used for going on foot.

• jadę = I go / am going by bus, car, train, bike, etc.
• idę = I walk / am going on foot

Since the sentence says you get on a bus, the next verb is naturally:

• jadę do domu = I go home / I’m going home

Compare:

• Idę do domu. = I’m going home on foot.
• Jadę do domu. = I’m going home by some vehicle.

Because do means to in the sense of movement toward a destination, and it requires the genitive case.

• dictionary form: dom
• genitive singular: domu

So:

• do domu = to home / home

In natural English we usually just say home, but Polish often uses do domu.

Examples:

• Wracam do domu. = I’m returning home.
• Idę do domu. = I’m going home.
• Jadę do domu. = I’m going home.

Yes, very often.

English can say simply home, but Polish usually expresses this idea with:

• do domu = to home / home

So English I’m going home is often:

• Idę do domu or Jadę do domu

You should think of do domu as the standard Polish way to express movement toward home.

Because Polish often leaves out subject pronouns when they are already clear from the verb ending.

• wsiadam already means I get on
• jadę already means I go / I’m going

So ja is not necessary.

The full version would be:

• Po pracy ja wsiadam do autobusu i jadę do domu.

But that sounds unnecessary in normal speech unless you want emphasis, for example:

• Ja jadę do domu, a on idzie do sklepu. = I’m going home, and he’s going to the shop.

Yes, both verbs are in the present tense:

• wsiadam = I get on / I’m getting on
• jadę = I go / I’m going

In Polish, the present tense can describe:

• what is happening now
• a habit or routine
• a sequence told in a vivid, natural way

So this sentence can mean something like:

• After work, I get on the bus and go home.
• After work, I’m getting on the bus and going home.

Very often, without more context, a learner should understand it as a normal repeated action or routine.

Because they describe two different stages of the action:

1. wsiadam do autobusu = I get on the bus
2. jadę do domu = I go home / ride home

Polish often expresses the sequence very clearly.

So the sentence is not just I go home by bus. It literally describes:

• first, boarding the bus
• then, riding home

If you wanted a shorter sentence, you could say:

• Po pracy jadę do domu autobusem. = After work, I go home by bus.

That version does not explicitly mention boarding.

Yes, absolutely. That is a very natural sentence.

It means:

• After work, I go home by bus.

Difference:

• Po pracy wsiadam do autobusu i jadę do domu.
  • emphasizes the sequence: I get on the bus and go home
• Po pracy jadę autobusem do domu.
  • simply states the means of transport: I go home by bus

So both are correct, but they focus on slightly different things.

Both are genitive singular.

Why?

• do autobusu: do requires the genitive
• do domu: do also requires the genitive

Forms:

• autobus → autobusu
• dom → domu

So in this sentence you can notice two common case patterns:

• po pracy → locative after po
• do autobusu, do domu → genitive after do

Yes. Polish word order is more flexible than English, although some orders sound more natural in certain contexts.

Original:

• Po pracy wsiadam do autobusu i jadę do domu.

Possible alternatives:

• Wsiadam po pracy do autobusu i jadę do domu.
• Po pracy jadę do domu, wsiadając do autobusu.
  
  • grammatical, but less natural for a beginner pattern
• Po pracy do autobusu wsiadam i jadę do domu.
  • possible, but sounds marked or contrastive

The original sentence is a very natural, neutral order.

Yes, but it changes the emphasis a little.

• jadę do domu = I’m going home
• wracam do domu = I’m returning home

So:

• Po pracy wsiadam do autobusu i wracam do domu. = After work, I get on the bus and return home.

This is also correct, and maybe even very natural in some contexts. But wracam highlights the idea of coming back, while jadę simply focuses on the movement by vehicle.