Szefowa powiedziała, że miałam wysłać raport przed aktualizacją systemu, ale nie mogłam się zalogować.

Szefowa means female boss. Polish often marks gender in job titles and nouns referring to people.

• szef = a male boss, or sometimes a gender-neutral boss in casual use
• szefowa = a female boss

So this sentence tells us the boss is a woman.

Because the subject szefowa is feminine, the past tense verb also has a feminine form.

• powiedział = he said
• powiedziała = she said

In Polish past tense, verbs agree with the gender of the subject. That is very different from English, where said stays the same.

Że means that and introduces a subordinate clause.

So:

• Szefowa powiedziała = The boss said
• że miałam wysłać raport... = that I was supposed to send the report...

In English, that is often optional. In Polish, że is usually expressed in this kind of sentence.

Miałam wysłać raport usually means I was supposed to send the report or I had to send the report.

This structure is very common in Polish:

• mieć in the past + infinitive

It often expresses:

• obligation
• expectation
• plan
• something that should have happened

So miałam wysłać is not just I sent. It suggests there was a requirement or expectation.

Because the speaker is female.

In Polish, past tense forms and some similar forms reflect the speaker’s gender in the singular:

• miałam, mogłam = used by a woman
• miałem, mogłem = used by a man

So this sentence tells us that the person speaking is female.

Because wysłać is perfective, and here that fits the idea of completing one whole action: sending the report.

• wysłać = to send, as a completed action
• wysyłać = to be sending / to send repeatedly / to send in an ongoing or habitual sense

In this sentence, the point is not the process of sending, but the expected completed result: the report should have been sent.

So miałam wysłać raport = I was supposed to send the report.

Because raport is the direct object of wysłać, and with this verb it appears in the accusative case. For masculine inanimate nouns like raport, the accusative singular is the same as the nominative singular.

• nominative: raport
• accusative: raport

So even though it is functioning as the object, the form does not change.

Because the preposition przed when it means before takes the instrumental case.

So:

• aktualizacja = nominative
• aktualizacją = instrumental

That is why you get przed aktualizacją.

Then systemu is genitive because it depends on aktualizacja:

• aktualizacja systemu = system update / literally update of the system

So the whole phrase means before the system update.

It is the genitive singular form of system.

Polish often expresses noun-to-noun relationships with the genitive, where English might use:

• of
• a noun used as an adjective
• a compound noun

So:

• aktualizacja systemu = update of the system = system update

This is a very common pattern in Polish.

This means I couldn’t log in.

A few things are happening here:

• mogłam = I could / I was able to, feminine speaker
• nie mogłam = I couldn’t
• zalogować się = to log in

So literally it is something like I was not able to log myself in, but in normal English we just say I couldn’t log in.

Się is a very common Polish reflexive particle. In some verbs, it is essential and forms part of the verb’s normal dictionary meaning.

So:

• zalogować się = to log in
• wylogować się = to log out

In many cases, you should learn the whole verb together with się, because the meaning can change or the verb may simply require it.

Also, się is mobile in Polish, so you may see:

• nie mogłam się zalogować
• nie mogłam zalogować się

Both are possible, though the first one sounds very natural here.

Because Polish punctuation normally requires commas before these conjunctions in this kind of sentence.

• before że when it introduces a subordinate clause
• before ale when it joins two contrasting clauses

So:

• Szefowa powiedziała, że...
• ..., ale nie mogłam...

This is standard Polish punctuation.

Yes. Polish word order is more flexible than English because case endings show grammatical relationships.

For example, this sentence could be rearranged in some ways depending on emphasis. But the original order is very natural:

Szefowa powiedziała, że miałam wysłać raport przed aktualizacją systemu, ale nie mogłam się zalogować.

It presents the information clearly:

1. what the boss said
2. what the speaker was supposed to do
3. the problem that prevented it

So while Polish allows movement, learners should usually stick to the most neutral order until they get used to emphasis patterns.