Zapakuję towar w oryginalne opakowanie.

Zapakuję is the 1st person singular form of the verb zapakować.

It means I will pack, I’ll package, or I’ll pack up.

A key point: zapakować is a perfective verb, so it suggests a completed action. The sentence is not just about the process of packing, but about getting the goods packed.

That is very common in Polish with perfective verbs.

• Imperfective verbs can have a real present meaning:
  • pakuję = I am packing / I pack
• Perfective verbs use present-type endings, but they refer to the future:
  • zapakuję = I will pack

So zapakuję is formally built like a present-tense form, but in meaning it is future.

Both can refer to the future, but they are not identical.

• zapakuję = I will pack it, and the action will be completed
• będę pakować = I will be packing / I’ll be in the process of packing

So in your sentence, zapakuję sounds more natural if the speaker means a single, completed act of putting the goods into the original packaging.

Because towar is a masculine inanimate noun, and in the singular, its accusative form is the same as its nominative form.

Here it is the direct object of zapakuję, so it is in the accusative:

• nominative: towar
• accusative: towar

So even though the case changes grammatically, the word itself stays the same in form.

Towar usually means goods, merchandise, stock, or cargo, depending on context.

It is often a collective/business word, not just a single everyday item. So it can sound a bit more commercial than a simple word like rzecz.

Also, Polish towar is grammatically singular, even though English often uses a plural-looking translation like goods.

Because Polish uses different cases after w depending on the meaning:

• w + accusative = into something, showing movement/change of location
• w + locative = in something, showing location

Here the meaning is put the goods into the original packaging, so Polish uses w + accusative:

• w oryginalne opakowanie = into the original packaging

Compare:

• Zapakuję towar w oryginalne opakowanie. = I will pack the goods into the original packaging.
• Towar jest w oryginalnym opakowaniu. = The goods are in the original packaging.

It is accusative singular.

Why?

• The preposition w takes the accusative here because the sentence expresses movement/result: into the packaging
• opakowanie is a neuter singular noun
• The adjective oryginalne agrees with it in gender, number, and case

So the whole phrase w oryginalne opakowanie is an accusative phrase.

Because it has to agree with opakowanie, which is:

• neuter
• singular
• here, accusative

The adjective forms are:

• oryginalny — masculine
• oryginalna — feminine
• oryginalne — neuter

Since opakowanie is neuter, the adjective must be oryginalne.

It can mean either, depending on context.

In this sentence, oryginalne opakowanie usually means the original packaging — for example, the original box, wrapper, carton, or container the goods came in.

So English may translate it as:

• original packaging
• original package
• original container

The best choice depends on the situation.

Yes. Polish word order is fairly flexible because case endings show the grammatical roles.

The given sentence:

• Zapakuję towar w oryginalne opakowanie.

is a neutral, natural order.

But you could also say:

• Towar zapakuję w oryginalne opakowanie.
• W oryginalne opakowanie zapakuję towar.

These versions are still grammatical, but the emphasis changes. The original sentence is the safest neutral choice.

In this sentence, w is the most natural choice.

With zapakować, Polish very often uses the pattern:

• zapakować coś w coś = to pack something in/into something

So:

• Zapakuję towar w oryginalne opakowanie sounds natural and standard.

You will often see do with other verbs and nouns, for example:

• włożyć coś do pudełka = to put something into a box

But for this sentence, w oryginalne opakowanie is the better form to learn.