Musimy przełożyć spotkanie na piątek, bo dziś szefowa jest zajęta.

In Polish, the verb ending usually already tells you the subject, so musimy means we must / we have to by itself.

• muszę = I must
• musisz = you must
• musi = he/she/it must
• musimy = we must

Because of that, my is often omitted unless you want extra emphasis, contrast, or clarity.

• Musimy przełożyć spotkanie. = We have to postpone the meeting.
• My musimy przełożyć spotkanie. = We have to postpone the meeting. (emphatic)

Yes — przełożyć is a very common Polish verb with more than one meaning.

In different contexts, it can mean:

• to postpone / reschedule
• to move something to another time
• to translate

Here, because the object is spotkanie and we have na piątek, it clearly means:

• to postpone / move the meeting to Friday

Examples:

• Przełożyć spotkanie na piątek = to move the meeting to Friday
• Przełożyć książkę na polski = to translate a book into Polish

So the surrounding words tell you which meaning is intended.

Spotkanie is the direct object of przełożyć, so you might expect the accusative case. However, spotkanie is a neuter noun, and in neuter nouns the nominative and accusative singular often look exactly the same.

So:

• nominative: spotkanie
• accusative: spotkanie

That is why the form does not change.

A similar pattern:

• mam okno = I have a window
• widzę dziecko = I see a child

Both okno and dziecko are neuter, so nominative and accusative singular are identical.

This is a very common learner question, because both can relate to Friday, but they mean slightly different things.

• w piątek = on Friday
• na piątek = for Friday / to Friday

In this sentence, the meeting is being moved to Friday, so Polish uses na + accusative:

• przełożyć spotkanie na piątek = move/postpone the meeting to Friday

Compare:

• Spotkanie jest w piątek. = The meeting is on Friday.
• Przełożyliśmy spotkanie na piątek. = We moved the meeting to Friday.

So w piątek states when something happens, while na piątek often shows the new target date after moving or scheduling something.

Because na can take different cases depending on meaning, and here it takes the accusative.

The day piątek is a masculine noun. Its forms are:

• nominative: piątek
• accusative: piątek
• genitive: piątku

In na piątek, we use the accusative, and for this noun the accusative looks the same as the nominative.

So:

• na piątek = for/to Friday
• w piątek = on Friday

If you see piątku, that is a different case, for example:

• do piątku = until Friday

Yes. Bo means because.

In this sentence:

• Musimy przełożyć spotkanie na piątek, bo dziś szefowa jest zajęta.
• We have to move the meeting to Friday, because today the boss is busy.

A useful note: bo is very common in everyday speech and neutral informal writing. A more formal alternative is ponieważ.

Compare:

• bo = because
• ponieważ = because / since, more formal

Both are correct, but bo sounds very natural in ordinary conversation.

Yes. Dziś and dzisiaj both mean today.

• dziś is slightly shorter and very common
• dzisiaj is also completely normal

In most situations, they are interchangeable:

• Dziś szefowa jest zajęta.
• Dzisiaj szefowa jest zajęta.

Both mean the same thing.

Because szefowa is a feminine noun, and adjectives in Polish must agree with the noun in gender, number, and case.

Here:

• szefowa = female boss / female manager
• zajęta = busy (feminine singular)

Compare:

• szef jest zajęty = the male boss is busy
• szefowa jest zajęta = the female boss is busy

So the adjective changes to match the person being described.

Polish often drops to be in the present tense only in certain sentence types, especially in colloquial identity statements like:

• To moja siostra. = This is my sister.

But when describing a state or condition with an adjective, Polish normally uses jest:

• Szefowa jest zajęta. = The boss is busy.
• On jest zmęczony. = He is tired.

So here jest is required.

Not exactly. Przełożyć and odwołać are different.

• przełożyć spotkanie = postpone / reschedule the meeting
• odwołać spotkanie = cancel the meeting

In your sentence, the meeting is not being canceled — it is being moved to Friday. So przełożyć is the correct verb.

Yes, Polish word order is more flexible than English word order, because grammatical endings carry a lot of information.

The given order is natural:

• bo dziś szefowa jest zajęta

But other versions are possible, for example:

• bo szefowa dziś jest zajęta
• bo szefowa jest dziś zajęta
• bo jest dziś zajęta szefowa (possible, but less natural in ordinary neutral speech)

The differences are mostly about emphasis and style, not basic meaning.

A good rule for learners: use the original order unless you have a reason to change the focus.

Yes, absolutely.

• Musimy przełożyć spotkanie. = We have to postpone the meeting.
• Musimy przełożyć to spotkanie. = We have to postpone this meeting.

Adding to makes it more specific, like this in English. Without to, the sentence is still perfectly natural.

Polish does not have articles like a and the.

So spotkanie can mean:

• a meeting
• the meeting

You understand which one is meant from context.

For example:

• Musimy przełożyć spotkanie. could mean We have to postpone the meeting if both speakers know which meeting, or more generally a meeting depending on context.

If you want to be more specific, you can add words like:

• to spotkanie = this meeting
• nasze spotkanie = our meeting
• spotkanie z klientem = the meeting with the client

A rough pronunciation guide:

• przełożyć ≈ psheh-WOH-zhich

Some key sounds:

• rz usually sounds like the zh in measure
• ł sounds like English w
• ż also sounds like zh
• final ć is a soft sound, something like a very soft ch / tch

So:

• prze- ≈ pshe
• ło- ≈ wo
• żyć ≈ zhich

If you are learning pronunciation, ł sounding like w is especially important.

In many everyday contexts, musimy can be translated as either we must or we have to.

• Musimy przełożyć spotkanie = We must postpone the meeting / We have to postpone the meeting

In natural English, have to is often the more conversational translation. Polish musieć does not map perfectly onto every nuance of English must, but in a sentence like this, both are fine.

Yes.

• Musimy przełożyć spotkanie na piątek, ponieważ dziś szefowa jest zajęta.

This is grammatically correct and means the same thing. The difference is mostly style:

• bo = more everyday, conversational
• ponieważ = more formal or written

For ordinary speech, bo is usually the most natural choice.