Szefowa przyznała, że klientka miała rację w sprawie terminu.

Because the sentence is talking about two women.

• szefowa = a female boss / manager
• klientka = a female client / customer

In Polish, nouns referring to people often show gender more clearly than in English. If the people were male, you would usually get:

• szef
• klient

So this sentence specifically means that a female boss admitted that a female client was right.

That -a shows feminine singular past tense.

In Polish past tense, the verb agrees with the gender of the subject:

• przyznał = he admitted

• przyznała = she admitted

• miał = he had
• miała = she had

So:

• Szefowa przyznała = The female boss admitted
• klientka miała rację = the female client was right

This is one of the things English speakers often notice quickly: Polish past tense tells you the gender of the subject.

Here przyznała means admitted or acknowledged.

The base verb is:

• przyznać = to admit, to concede, to acknowledge

In this sentence, it suggests that the boss accepted that the client was correct.

A very natural English translation would be:

• The boss admitted that the client was right about the deadline.

że means that and introduces a subordinate clause.

So:

• Szefowa przyznała = The boss admitted
• że klientka miała rację = that the client was right

This works very much like English that:

• She admitted that...
• Przyznała, że...

In Polish, że is extremely common after verbs like:

• mówić = to say
• myśleć = to think
• wiedzieć = to know
• uważać = to consider
• przyznać = to admit

Because Polish uses the expression mieć rację, literally to have right, to mean to be right.

So:

• mieć rację = to be right
• literally: to have reason/rightness

Examples:

• Masz rację. = You are right.
• Nie masz racji. = You are not right.
• Ona miała rację. = She was right.

This is just the normal Polish idiom. English uses be, but Polish uses have.

Because mieć usually takes a direct object in the accusative case, and racja changes to rację in the accusative singular.

• nominative: racja
• accusative: rację

So:

• To jest racja is not how Polish normally says That is right
• instead Polish says Masz rację / Miała rację

This is a very useful phrase to memorize as a whole:

• mieć rację = to be right

It means regarding the deadline / concerning the date / about the schedule issue, depending on context.

Breakdown:

• w sprawie = regarding, concerning, in the matter of
• terminu = of the deadline / date / appointment / scheduled time

So the phrase means something like:

• about the deadline
• on the matter of the date
• regarding the timing

In many work-related contexts, termin often means deadline.

Because w sprawie requires the genitive case, and termin becomes terminu in the genitive singular.

• nominative: termin
• genitive: terminu

So:

• w sprawie + genitive

Examples:

• w sprawie projektu = regarding the project
• w sprawie umowy = regarding the contract
• w sprawie terminu = regarding the deadline/date

This is worth learning as a fixed pattern.

Termin is one of those words that can mean several related things, depending on context:

• deadline
• date
• appointed time
• time limit
• appointment slot

In a business sentence like this, termin often most naturally means:

• deadline or
• agreed date

So if you already know the situation, the translation might be:

• about the deadline
• about the agreed date
• about the due date

Because Polish often leaves subject pronouns out when they are not needed.

English usually says:

• She admitted that she was right — though in this sentence the second she refers to a different person

Polish can simply say:

• Szefowa przyznała, że klientka miała rację

The nouns themselves already tell us who is doing what, and the verb forms also show gender and number. So pronouns like ona are often unnecessary.

Yes. Polish word order is more flexible than English, although not completely free.

The original sentence is neutral and natural:

• Szefowa przyznała, że klientka miała rację w sprawie terminu.

But you could also move things around for emphasis, for example:

• Szefowa przyznała, że w sprawie terminu klientka miała rację.
  • This puts more focus on the issue of the deadline.

Both are correct, but the original sounds like a normal, straightforward statement.

Yes. przyznać is perfective.

• przyznawać = imperfective
• przyznać = perfective

Here, the perfective verb shows a completed act of admitting or conceding. The boss reached the point of admitting it.

So:

• Szefowa przyznała... = The boss admitted... / ended up admitting...

If you used the imperfective przyznawała, it would usually suggest repeated action, ongoing action, or a different viewpoint, and it would sound less natural in this simple sentence.

Because the two verbs describe different kinds of meaning.

• przyznała describes a completed event: she admitted it.
• miała rację describes a state: she was right.

The verb mieć is imperfective, and in the expression mieć rację, that is completely normal. You are not focusing on a completed action of having, but on the fact that the client was in the right.

So the aspect combination here is very natural:

• one completed action
• one ongoing/background state

You would change both the nouns and the past-tense verb forms:

• Szef przyznał, że klient miał rację w sprawie terminu.

Changes:

• szefowa → szef
• przyznała → przyznał
• klientka → klient
• miała → miał

That is a good way to see how strongly Polish marks gender in the past tense.