Я перевірив комплектність товару.

Yes:

• Я = I
• перевірив = checked
• комплектність = completeness / whether everything is included
• товару = of the product / item / goods

A very literal rendering is:

• I checked the completeness of the product

In more natural English, this often means something like:

• I checked whether the item was complete
• I checked that all parts/accessories were present

Перевірив is:

• past tense
• masculine singular
• perfective

So it means I checked as a completed action.

The speaker is understood to be male because of the past tense ending.

Compare:

• Я перевірив = I checked (male speaker)
• Я перевірила = I checked (female speaker)

Because it is perfective, it focuses on the result: the checking was completed.

A woman would say:

• Я перевірила комплектність товару.

The only change is the past tense verb ending:

• перевірив → перевірила

This is very common in Ukrainian: past tense verbs agree with the gender of the speaker in the singular.

This is an important aspect pair:

• перевірив = checked, finished checking
• перевіряв = was checking / checked repeatedly / used to check

So:

• Я перевірив комплектність товару. = I checked the completeness of the product and the action is presented as complete.
• Я перевіряв комплектність товару. = I was checking the completeness of the product or I checked it (as a process)

In this sentence, перевірив is more natural if you want to report a finished action.

Here комплектність is in the accusative case because it is the direct object of перевірив.

However, it looks exactly like the nominative form. That is normal.

Why? Because комплектність is:

• a feminine
• inanimate
• noun ending in -ість

For many inanimate nouns, the accusative has the same form as the nominative.

So:

• nominative: комплектність
• accusative: комплектність

Same form, different function.

Because товару is in the genitive case.

The phrase комплектність товару means:

• the completeness of the product

So товару depends on комплектність and answers the question completeness of what?

That is why Ukrainian uses the genitive here.

Compare:

• товар = product / item (nominative)
• товару = of the product (genitive)

Комплектність is a somewhat formal word. It usually means:

• whether something is complete
• whether all required parts, accessories, documents, or components are present

So in practical terms, it often means:

• the item has everything it is supposed to have
• nothing is missing from the package/set

This word is common in contexts like:

• retail
• warehouses
• shipping
• inspections
• customer service
• product acceptance

So the sentence is not just about checking the product generally; it is specifically about checking that the product/package is complete.

Товар can mean several related things depending on context:

• product
• item
• goods
• merchandise

In this sentence, the most natural English choice is often product or item.

So:

• комплектність товару = the completeness of the product/item

If the context is business or logistics, goods may also work, but in English goods often sounds more general or plural-like, while Ukrainian товар can still be singular.

Because Ukrainian does not have articles like English a/an/the.

So:

• товар can mean a product or the product
• the exact meaning depends on context

In this sentence, English usually needs an article, but Ukrainian does not.

That is completely normal:

• Я перевірив комплектність товару.
  = I checked the completeness of the product
  or sometimes
  = I checked a product’s completeness, depending on context

Yes. Ukrainian word order is more flexible than English because case endings show the grammatical relationships.

The neutral/default order here is:

• Я перевірив комплектність товару.

But you could also say:

• Комплектність товару я перевірив.

That version puts more emphasis on комплектність товару.

The meaning stays basically the same, but the focus changes.

So word order in Ukrainian often affects:

• emphasis
• contrast
• style
• information flow

Yes, but it means something different.

• Я перевірив товар. = I checked the product/item.
• Я перевірив комплектність товару. = I checked whether the product/item was complete.

The second sentence is more specific. It says exactly what aspect of the product was checked.

So if you want to say that you checked for missing parts/accessories, комплектність товару is the better phrase.

Yes, but it sounds a bit formal or professional.

It is especially natural in contexts like:

• receiving deliveries
• inspecting purchases
• warehouse work
• technical documentation
• customer complaints
• quality control

In very casual speech, people might say something more conversational, for example:

• Я перевірив, чи все є в комплекті.
  = I checked whether everything was included.

That is less formal and often more natural in everyday conversation.

You would usually say:

• Я перевірив комплектність товарів.

Here:

• товарів is the genitive plural of товар

So:

• товару = of the product
• товарів = of the products

If the speaker is female:

• Я перевірила комплектність товарів.