Nie oczekuję szybkiej odpowiedzi.

Because oczekuję is the 1st person singular form of the verb oczekiwać in the present tense, so it means I expect.

A quick breakdown:

• oczekiwać = to expect
• oczekuję = I expect
• nie oczekuję = I do not expect

Polish usually does not need a separate subject pronoun like I, because the verb ending already shows who is doing the action.

Polish often leaves out subject pronouns when they are clear from the verb form.

So:

• oczekuję already means I expect
• nie oczekuję already means I do not expect

You could say Ja nie oczekuję szybkiej odpowiedzi, but ja would only be added for emphasis, contrast, or emotional tone.

For example:

• Ja nie oczekuję szybkiej odpowiedzi, ale on tak.
  I do not expect a quick reply, but he does.

Because the verb oczekiwać requires the genitive case.

The basic dictionary forms are:

• szybka odpowiedź = a quick reply

But after oczekiwać, both words change into the genitive:

• odpowiedź → odpowiedzi
• szybka → szybkiej

So:

• oczekuję odpowiedzi = I expect a reply
• oczekuję szybkiej odpowiedzi = I expect a quick reply
• nie oczekuję szybkiej odpowiedzi = I do not expect a quick reply

Not in this sentence.

It is a very common question, because negation in Polish often affects case. But here, the main reason is that oczekiwać itself already takes the genitive, even in a positive sentence.

Compare:

• Oczekuję odpowiedzi. = I expect a reply.
• Nie oczekuję odpowiedzi. = I do not expect a reply.

So the genitive is required by oczekiwać, not created by the negation.

Both can relate to waiting/expecting, but they are not the same.

oczekuję

Usually means I expect or I am awaiting, and sounds more formal or deliberate.

• Oczekuję odpowiedzi. = I expect / await a reply.

czekam

Usually means I am waiting and is more everyday and concrete.

• Czekam na odpowiedź. = I am waiting for a reply.

A useful contrast:

• Nie oczekuję szybkiej odpowiedzi. = I am not expecting a quick reply.
  This sounds natural in emails and polite written communication.
• Nie czekam na szybką odpowiedź. is possible, but it sounds less natural for this exact polite-email meaning.

It can be somewhere between them.

In many contexts, oczekiwać means:

• to expect
• to await

In a sentence like Nie oczekuję szybkiej odpowiedzi, English often translates it as:

• I do not expect a quick reply
• or more naturally in email style: I’m not expecting a quick reply

It carries a polite sense of there is no hurry.

Because Polish szybki / szybka / szybkie literally means fast or quick, but in context it can refer to something being done promptly.

So szybka odpowiedź is literally:

• quick reply

But in natural English, depending on context, it may be:

• quick reply
• prompt reply
• speedy response

All of these can fit.

It sounds polite, neutral, and slightly formal. It is very natural in written communication, especially emails.

For example, you might write it when telling someone there is no pressure to respond quickly.

It is less casual than something like:

• Nie musisz odpisywać szybko. = You don’t have to reply quickly.
• Nie spiesz się z odpowiedzią. = Don’t rush with the reply.

So Nie oczekuję szybkiej odpowiedzi is a good choice in professional or polite contexts.

Yes. Polish word order is flexible, though the neutral order here is very natural:

• Nie oczekuję szybkiej odpowiedzi.

Other orders are possible for emphasis, for example:

• Szybkiej odpowiedzi nie oczekuję.
  This puts extra emphasis on a quick reply.

• Nie oczekuję odpowiedzi szybkiej.
  Grammatically possible, but less natural in normal usage.

So for most learners, the original order is the best one to use.

It is genitive singular of odpowiedź.

Forms:

• odpowiedź = nominative singular
• odpowiedzi = genitive singular

Because reply/response is one item here, it is singular.

Likewise:

• szybka = nominative singular feminine
• szybkiej = genitive singular feminine

The adjective matches the noun in case, number, and gender.

Odpowiedź is a feminine noun.

That is why the adjective in dictionary form is:

• szybka odpowiedź

and in the genitive:

• szybkiej odpowiedzi

The feminine gender matters because it affects adjective endings and case forms.

No, that is not correct.

Szybką odpowiedź is the accusative form, but oczekiwać takes the genitive, so you need:

• Nie oczekuję szybkiej odpowiedzi.

A useful comparison:

• Mam szybką odpowiedź. = I have a quick reply.
  Here szybką odpowiedź is fine, because mieć takes the accusative.
• Oczekuję szybkiej odpowiedzi. = I expect a quick reply.
  Here you need the genitive.

Not necessarily.

Nie oczekuję szybkiej odpowiedzi usually means:

• I do not expect a quick reply
• There is no need to answer quickly
• Take your time

It does not usually mean:

• I do not expect any reply at all

If you wanted to say that no reply is needed, you might say something more direct, like:

• Nie oczekuję odpowiedzi. = I do not expect a reply.
• Odpowiedź nie jest konieczna. = A reply is not necessary.

So the adjective szybkiej is important: it limits the meaning to the speed of the reply.

Yes, oczekuję is a present-tense form, but in Polish, just like in English, present tense can express a current state or attitude about the future.

So:

• Nie oczekuję literally means I am not expecting
• and in context it refers to a future reply

This is very natural. The idea is that right now, your expectation is that the reply does not need to come quickly.

Yes, absolutely. It is very natural in emails.

For example:

• Dziękuję za wiadomość. Nie oczekuję szybkiej odpowiedzi.
  Thank you for the message. I do not expect a quick reply.

It sounds polite and considerate, especially when writing to someone busy.

A rough English-friendly guide is:

• Nyeh oh-cheh-KOO-yeh SHIB-kyei od-poh-VYE-dzee

A few helpful points:

• nie sounds roughly like nyeh
• cz sounds like ch in chop
• ę at the end of oczekuję is often pronounced close to -eh / -e in everyday speech
• sz sounds like sh
• dzi in odpowiedzi sounds roughly like jee / dzee, depending on how finely you analyze it

This is only an approximation, but it can help at the start.

Yes.

Odpowiedź can mean:

• answer
• reply
• response

In this sentence, reply or response is usually the best fit, especially in communication contexts like messages or emails.

So:

• Nie oczekuję szybkiej odpowiedzi
  most naturally means
  I’m not expecting a quick reply / response.