Założę dżinsy i bluzkę, chyba że przełożona poprosi, żebym ubrała się bardziej elegancko.

Założę is the 1st person singular future form of the perfective verb założyć.

In Polish, perfective verbs do not normally have a true present meaning. Their present-looking forms usually refer to the future. So:

• założę = I will put on / I’ll wear
• not I am putting on

That is why Założę dżinsy i bluzkę means I’ll put on jeans and a blouse.

They are related, but not the same.

• założyć = to put on a specific item of clothing

  • założyć dżinsy
  • założyć bluzkę

• ubrać się = to get dressed / dress oneself
  It focuses on your overall appearance, not just one item.

So the sentence uses both very naturally:

• Założę dżinsy i bluzkę = I’ll put on jeans and a blouse
• żebym ubrała się bardziej elegancko = so that I dress more elegantly / so that I dress in a more elegant way

The second part is broader: the boss is not asking for one item, but for a more elegant style overall.

Because Polish usually treats jeans as a plural noun, just like English often does.

So:

• dżinsy = jeans

This is the normal word for the garment. A learner can think of it as similar to English jeans, pants, or trousers, which are also often treated as plural.

In this sentence, dżinsy stays the same in form because it is the accusative plural of an inanimate noun, and for this type of noun the accusative often looks the same as the nominative.

Because bluzkę is the accusative singular form of bluzka.

After a verb like założyć when you say what you are putting on, Polish uses the accusative:

• bluzka = blouse, subject form
• bluzkę = blouse, object form

So:

• Założę bluzkę = I’ll put on a blouse

This is a very common feminine pattern:

• książka → książkę
• spódnica → spódnicę
• bluzka → bluzkę

Chyba że means unless.

So the structure is:

• Założę dżinsy i bluzkę, chyba że...
• I’ll wear jeans and a blouse, unless...

It introduces an exception to what was just said.

A useful way to remember it:

• main plan: I’ll wear jeans and a blouse
• exception: unless my boss asks...

Because przełożona means female superior / female supervisor / female boss.

The masculine form is:

• przełożony = male superior

So the sentence tells us that the boss/supervisor is a woman.

Polish often makes gender visible in the noun itself, whereas English usually does not.

Because of ubrała.

In Polish, past-tense-type forms show gender:

• ubrał = male speaker
• ubrała = female speaker

So żebym ubrała się... tells us that the person speaking is female.

If a man were speaking, it would be:

• żebym ubrał się bardziej elegancko

So this sentence gives us two pieces of gender information:

• przełożona = the boss is female
• ubrała = the speaker is female

Żebym is a combination of:

• żeby = so that / in order that / that
• -m = a shortened form connected with ja in this kind of construction

So żebym means roughly:

• so that I
• that I

In this sentence:

• przełożona poprosi, żebym...
• my boss asks that I...

This structure is very common after verbs like:

• prosić = to ask
• chcieć = to want
• trzeba = it is necessary
• wolałbym, żeby... = I’d prefer that...

This is one of the most important things to notice.

After żeby, Polish often uses a form built from:

• a past-tense-like form of the verb
• plus a person marker such as bym, byś, by, etc.

So although ubrała looks like past tense, here it is not actually describing the past. It is part of a subjunctive-like / desired / requested construction:

• żebym ubrała się = that I dress / that I get dressed

In other words, Polish uses a form that looks past-like, but the meaning here is about something wanted, requested, or hypothetical.

Się is the reflexive particle. With ubrać się, it means to get dressed / dress oneself.

Compare:

• ubrać dziecko = to dress a child
• ubrać się = to get dressed / dress oneself

So in this sentence:

• ubrała się bardziej elegancko = dressed herself more elegantly / got dressed more elegantly

Without się, the meaning would change.

Because bardziej elegancko is functioning adverbially: it describes how she should dress.

• elegancko = elegantly
• bardziej elegancko = more elegantly

So:

• ubrać się bardziej elegancko = to dress more elegantly

If you used an adjective, it would need to describe a noun directly. But here the sentence is not describing a noun like bluzka or stylizacja. It is describing the manner of dressing.

Because Polish normally uses commas to separate subordinate clauses.

Here we have:

• ..., chyba że przełożona poprosi, ...
• ..., żebym ubrała się bardziej elegancko

Both chyba że and żeby introduce dependent clauses, so commas are expected.

This is very standard Polish punctuation and often stricter than English punctuation in similar sentences.