Za tydzień wprowadzę się do nowej kawalerki.

Za tydzień means in a week or a week from now.

In Polish, za + an accusative time expression is a very common way to say that something will happen after a certain amount of time:

• za godzinę = in an hour
• za dwa dni = in two days
• za miesiąc = in a month

So za tydzień tells you when the move will happen: one week from now.

A useful comparison:

• za tydzień = in a week
• w tydzień = within a week / in the course of a week

Those are not the same.

Wprowadzę is the 1st person singular future form of the verb wprowadzić.

So:

• wprowadzić = to move in / to introduce / to bring in, depending on context
• wprowadzę = I will move in / I will introduce / I will bring in

In this sentence, because of się and do nowej kawalerki, it clearly means I will move in.

Because wprowadzić się is the expression meaning to move in.

The się is important here. Without it, wprowadzić usually means something like:

• to introduce
• to bring in
• to implement

But wprowadzić się means to move into a place.

Compare:

• Wprowadzę nowy system. = I will introduce a new system.
• Wprowadzę się do mieszkania. = I will move into the apartment.

So się changes the meaning significantly.

Because wprowadzić się is a perfective verb.

In Polish, perfective verbs usually form the future with a simple one-word form:

• zrobię = I will do
• napiszę = I will write
• wprowadzę się = I will move in

That is different from imperfective verbs, which usually make the future with będę + infinitive or past-like forms:

• będę robić
• będę pisać

So wprowadzę się is the normal future form because the verb is perfective and describes a completed event.

The difference is mainly aspect:

• wprowadzić się = perfective, a completed move-in
• wprowadzać się = imperfective, the process / repeated idea / general activity of moving in

In this sentence, the speaker is talking about one future completed event, so wprowadzę się is the natural choice.

Examples:

• Za tydzień wprowadzę się do nowej kawalerki. = I’ll move into my new studio apartment in a week.
• Teraz się wprowadzam. = I’m moving in now.
• Cały dzień się wprowadzałem. = I was moving in all day.

It is genitive.

The preposition do usually requires the genitive case, and here it means to / into in the sense of going toward the inside of a place.

So:

• do kawalerki = into the studio apartment
• do nowej kawalerki = into the new studio apartment

The forms change like this:

• nowa kawalerka = a new studio apartment
• do nowej kawalerki = into a new studio apartment

So both words change because of do.

Because both words are in the genitive singular, and they have to agree.

Base form:

• nowa kawalerka

After do, you need genitive singular:

• do nowej kawalerki

Breakdown:

• nowa → nowej
• kawalerka → kawalerki

This is normal agreement in Polish: the adjective changes to match the noun in case, number, and gender.

Kawalerka means a studio apartment or small one-room flat.

It usually refers to a place with:

• one main room
• a kitchen area or small separate kitchen
• a bathroom

It is a very common everyday word in Polish.

A near equivalent in British English is studio flat. A near equivalent in American English is studio apartment.

Yes, but the meaning shifts a little.

• wprowadzić się do... = to move into a specific place
• przeprowadzić się = to move house / relocate

So:

• Za tydzień wprowadzę się do nowej kawalerki. emphasizes entering that new apartment.
• Za tydzień przeprowadzę się do nowej kawalerki. emphasizes changing residence more generally.

In many contexts, both are possible, but wprowadzę się do nowej kawalerki is especially natural when focusing on the new place itself.

Yes, Polish word order is fairly flexible.

The neutral order here is:

• Za tydzień wprowadzę się do nowej kawalerki.

But you could also hear:

• Wprowadzę się do nowej kawalerki za tydzień.
• Do nowej kawalerki wprowadzę się za tydzień.

The meaning stays basically the same, but the focus changes:

• Za tydzień... puts time first
• Do nowej kawalerki... emphasizes the destination

The version in the sentence sounds natural and neutral.

In this sentence, wprowadzę się is the most natural placement.

Się often comes right after the verb, especially in simple sentences like this:

• Wprowadzę się do nowej kawalerki.

Sometimes Polish allows other placements, especially with other sentence elements, but not every possible position sounds equally natural.

For a learner, the safest pattern is:

• verb + się

So here:

• wprowadzę się

That is the standard form you should remember.

Because Polish often leaves out possessives like my, your, his, etc. when they are obvious from context.

In English, you would often say:

• I’ll move into my new studio apartment in a week.

In Polish, if it is already clear that it is the speaker’s apartment, you can simply say:

• Za tydzień wprowadzę się do nowej kawalerki.

If you want to make my explicit, you can say:

• Za tydzień wprowadzę się do mojej nowej kawalerki.

That is also correct, just slightly more specific or emphatic.

Yes. After za in this time expression, tydzień is in the accusative.

For masculine inanimate nouns like tydzień, the accusative singular often looks the same as the nominative singular, so the form does not visibly change.

So:

• nominative: tydzień
• accusative: tydzień

That is why you see za tydzień, not a visibly different form.

Most directly, za tydzień means in a week, so it points to roughly one week from now.

If you specifically want to say next week, Polish usually says:

• w przyszłym tygodniu = next week

So:

• Za tydzień wprowadzę się... = I’ll move in in a week / a week from now
• W przyszłym tygodniu wprowadzę się... = I’ll move in next week

In casual conversation, the exact boundary may not always matter much, but grammatically they are different expressions.