Mam jeszcze zapas makaronu, więc dziś nie muszę iść do sklepu.

In Polish, subject pronouns are often omitted because the verb ending already shows who the subject is.

• mam = I have
• muszę = I must / I have to

So Mam jeszcze zapas makaronu... is completely natural. You would add ja only for emphasis or contrast, for example:

• Ja mam zapas makaronu, ale on nie ma.
  I have a supply of pasta, but he doesn’t.

Here jeszcze means still.

So Mam jeszcze zapas makaronu means I still have a supply of pasta.

Be careful: jeszcze can also mean more / another, depending on context.

• Chcę jeszcze kawy. = I want some more coffee.
• Jeszcze tu jestem. = I’m still here.

In this sentence, the meaning is clearly still.

Zapas means a запас/stock/supply/reserve of something.

So zapas makaronu is not just pasta. It suggests you have some amount stored up or kept in reserve.

Compare:

• Mam makaron. = I have pasta.
• Mam zapas makaronu. = I have a supply/stock of pasta.

The second version sounds more like I’ve got enough pasta stored away, which fits the idea of not needing to go to the shop.

Because after zapas, Polish normally uses the genitive case.

• base form: makaron
• genitive singular: makaronu

So:

• zapas makaronu = a supply of pasta
• zapas cukru = a supply of sugar
• zapas czasu = a reserve of time / extra time

This is a very common pattern: a noun meaning amount, supply, lack, part, a lot of often causes the next noun to go into the genitive.

Because więc connects two clauses, and in Polish it is normally preceded by a comma.

• Mam jeszcze zapas makaronu, więc dziś nie muszę iść do sklepu.

This is like English so in a sentence such as:

• I still have pasta, so I don’t have to go to the store today.

So the comma is standard punctuation here.

Więc means so / therefore.

In this sentence, it introduces the result:

• Mam jeszcze zapas makaronu → cause
• więc dziś nie muszę iść do sklepu → result

It is similar to dlatego, but not identical in use.

• więc = so
• dlatego = therefore / that’s why

Compare:

• Mam jeszcze zapas makaronu, więc dziś nie muszę iść do sklepu.
• Mam jeszcze zapas makaronu, dlatego dziś nie muszę iść do sklepu.

Both work, but więc often sounds a bit more everyday and direct.

Both dziś and dzisiaj mean today.

• dziś is shorter
• dzisiaj is a little fuller, but both are common and natural

So you could say:

• więc dziś nie muszę iść do sklepu
• więc dzisiaj nie muszę iść do sklepu

There is no important meaning difference here.

No. Nie muszę means I don’t have to.

That is a very important difference.

• muszę = I have to / I must
• nie muszę = I don’t have to

So this sentence means there is no necessity to go to the shop.

If you want to say I must not in the sense of prohibition, Polish usually uses other expressions, for example:

• Nie wolno mi iść do sklepu. = I’m not allowed to go to the shop.
• Nie powinienem iść do sklepu. = I shouldn’t go to the shop.

So nie muszę is about lack of need, not prohibition.

Because after musieć (to have to / must), Polish uses the infinitive.

• muszę iść = I have to go
• muszę kupić = I have to buy
• muszę pracować = I have to work

So:

• dziś nie muszę iść do sklepu = today I don’t have to go to the shop

If you said idę, that would be a conjugated verb meaning I’m going / I go, and it would not fit after muszę.

Because do is the normal preposition for movement to many places, especially enclosed places or institutions, and it requires the genitive.

• sklep = shop/store
• do sklepu = to the shop/store

So:

• iść do sklepu = to go to the shop

The case change is:

• nominative: sklep
• genitive: sklepu

No, not in standard Polish for this meaning.

For go to the shop/store, the normal phrase is:

• iść do sklepu

The preposition na is used with some destinations, but not with sklep in this basic sense. For example:

• iść na pocztę = go to the post office
• iść na uczelnię = go to university
• iść na zakupy = go shopping

But:

• iść do sklepu = go to the shop

So this is something you mostly have to learn as a fixed pattern.

Yes, you could, but the nuance changes.

• Mam jeszcze makaron. = I still have pasta.
• Mam jeszcze zapas makaronu. = I still have a supply/stock of pasta.

The version with zapas suggests a more comfortable amount, enough that going to the shop is unnecessary. It sounds a bit more like I’ve got some pasta in reserve.

So both are possible, but zapas makaronu is slightly more specific.

Not completely. Polish word order is fairly flexible, although some versions sound more natural than others depending on emphasis.

The given sentence is very natural:

• Mam jeszcze zapas makaronu, więc dziś nie muszę iść do sklepu.

You could also say:

• Mam jeszcze zapas makaronu, więc nie muszę dziś iść do sklepu.
• Dziś nie muszę iść do sklepu, bo mam jeszcze zapas makaronu.

These versions shift the focus a little:

• dziś earlier = emphasis on today
• bo version = starts with the result and then gives the reason

So the original is natural, but not the only possible word order.

They connect ideas in opposite directions.

• bo means because and introduces the reason
• więc means so and introduces the result

Compare:

• Mam jeszcze zapas makaronu, więc dziś nie muszę iść do sklepu.
  I still have a supply of pasta, so today I don’t have to go to the shop.

• Dziś nie muszę iść do sklepu, bo mam jeszcze zapas makaronu.
  Today I don’t have to go to the shop because I still have a supply of pasta.

The meaning is basically the same, but the structure is different.

Iść literally refers to going in one direction, often on foot, but in everyday Polish it is very commonly used in sentences like this even when the exact method of transport is not the point.

So nie muszę iść do sklepu is the normal, natural way to say I don’t have to go to the shop.

If you wanted to be very specific about travelling by vehicle, you might use another verb, but in this context iść is exactly what a learner should expect to hear.

Because makaron is often treated as an uncountable substance noun, like pasta in English.

So:

• zapas makaronu = a supply of pasta

You are talking about some quantity of pasta in general, not separate individual items. That is why singular genitive makaronu is natural here.

If you were talking about different kinds or packages in a more countable way, the wording might change, but in this sentence the singular is the normal choice.

Yes. Sklep is a general word for shop/store.

So do sklepu can be translated as:

• to the shop
• to the store

The best English translation depends on the variety of English you prefer:

• British English often prefers shop
• American English often prefers store

In Polish, sklep works well for both.