Я хочу повернути товар.

• Я = I
• хочу = want
• повернути = to return
• товар = goods / an item / merchandise / a product

So the structure is literally I want to return [the] item/product.

Because after хочу (I want), Ukrainian normally uses an infinitive, just like English uses to + verb:

• Я хочу повернути товар = I want to return the item
• Вона хоче купити це = She wants to buy this

So хочу is the conjugated verb, and повернути stays in the basic dictionary form.

In Ukrainian, the infinitive does not need a separate word like English to. The infinitive ending itself already shows that it is the basic verb form.

For example:

• повернути = to return
• купити = to buy
• зробити = to do / to make

So хочу повернути literally means want return, but in natural English we translate it as want to return.

Here товар is the direct object of the verb повернути, so it is in the accusative case.

The important point is that for many masculine inanimate nouns, the accusative singular looks exactly the same as the nominative singular.

So:

• nominative: товар
• accusative: товар

That is why the form does not change in this sentence.

Compare this with an animate masculine noun, where the accusative often changes:

• Я бачу брата = I see my brother

But:

• Я бачу товар = I see the item

Повернути is perfective. It usually refers to a completed action: returning the item successfully, as a whole event.

Its imperfective partner is повертати.

So:

• Я хочу повернути товар = I want to return the item
  (focus on completing the return)
• Я хочу повертати товар would usually sound wrong in this situation, because imperfective suggests a repeated or ongoing process, not a one-time return.

In a store, повернути is the normal choice.

Both can mean to return, but повернути is the more standard and widely taught form.

• повернути = standard, neutral, common everywhere
• вернути = also used, but can sound more colloquial or regional depending on context

So for a learner, Я хочу повернути товар is the safest version.

Yes. Ukrainian often drops subject pronouns when the meaning is clear from the verb ending.

• Я хочу повернути товар
• Хочу повернути товар

Both mean I want to return the item.

Including Я can add a little emphasis or clarity, but it is not always necessary.

Yes, Ukrainian word order is more flexible than English. The most neutral order here is:

• Я хочу повернути товар

But you might also hear:

• Товар я хочу повернути
  (emphasizes the item)
• Повернути товар я хочу
  (more marked, less neutral)

For everyday use, especially as a learner, stick with Я хочу повернути товар.

A useful stress pattern is:

Я хочу́ поверну́ти това́р

Approximate pronunciation:

• Я = ya
• хочу́ = kho-CHOO
• поверну́ти = po-ver-NOO-ty
• това́р = to-VAR

A rough English-style approximation: ya kho-CHOO po-ver-NOO-ty to-VAR

Товар is a general word for goods, merchandise, or an item/product, especially in a shopping or store context.

It works well here, but depending on the situation, other words may also sound natural:

• річ = thing, item
• покупка = purchase
• замовлення = order
• продукт / виріб = product, item

In a store return context, товар is very normal and useful.

It is correct and understandable, but it is fairly direct: I want to return the item.

If you want to sound more polite, you could say:

• Я хотів би повернути товар. = I would like to return the item.
  (for a male speaker)
• Я хотіла б повернути товар. = I would like to return the item.
  (for a female speaker)
• Можна повернути товар? = Can I return the item?

So your sentence is fine, but there are softer options for customer-service situations.

Хочу is the 1st person singular present-tense form of хотіти (to want).

Conjugation:

• я хочу = I want
• ти хочеш = you want
• він/вона хоче = he/she wants
• ми хочемо = we want
• ви хочете = you want
• вони хочуть = they want

So хочу tells you the subject is I, which is another reason Я can sometimes be omitted.

In this sentence, with товар, it very naturally means return an item/product, especially to a store.

The verb повернути is broader than English return in some contexts. It can also mean:

• give back
• bring back
• restore

Examples:

• Повернути книгу = return/give back the book
• Повернути гроші = return/refund the money
• Повернутися додому is different: to return home / come back home
  (notice the reflexive form повернутися)

So with товар, the store-return meaning is very clear.