Спасибо, но я не хочу принимать такой дорогой подарок.

Here принимать means to accept.

Russian принимать / принять can have several related meanings depending on context:

• принимать гостей — to receive guests
• принимать меры — to take measures
• принимать подарок — to accept a gift

In this sentence, the idea is not just physically taking the gift into your hands, but agreeing to accept it. So принимать подарок is very natural.

This is a question of aspect.

• принимать = imperfective
• принять = perfective

After хочу / не хочу, Russian often uses the imperfective when talking about whether someone is willing to do something in general or at all.

So:

• Я не хочу принимать такой дорогой подарок.
  = I don’t want to accept such an expensive gift.

Using принять here is possible in some contexts, but не хочу принимать sounds more natural as a refusal. It focuses on the action as something you do not wish to engage in.

Because подарок is the direct object of принимать, so it is in the accusative case.

For masculine inanimate singular nouns, the accusative looks exactly like the nominative:

• nominative: подарок
• accusative: подарок

So the form does change grammatically, but it just happens to look the same.

Compare with an animate masculine noun, where accusative would look different:

• Я вижу брата. — I see my brother.

They are changing for the accusative — but for masculine inanimate singular, the accusative form is the same as the nominative.

So:

• такой подарок
• дорогой подарок

are both nominative-looking forms, but here they are functioning as accusative because they describe the direct object.

This is a very common pattern in Russian:

• Я купил новый стол.
• Он увидел большой дом.

Here такой means such a or that kind of.

So такой дорогой подарок means:

• such an expensive gift
• literally, a gift that is so expensive / of that kind

It adds emphasis. Without такой, the sentence would simply mean:

• Спасибо, но я не хочу принимать дорогой подарок.
  = Thank you, but I don’t want to accept an expensive gift.

With такой, the speaker stresses the degree: it is too expensive, or unusually expensive.

Yes, but the meaning changes.

• такой дорогой подарок = such an expensive gift
• этот дорогой подарок = this expensive gift

Этот points to a specific gift: this one.
Такой emphasizes the type or degree: a gift this expensive.

So if you are refusing because the gift is unusually valuable, такой is the better choice.

Yes, Russian can sometimes omit subject pronouns when the meaning is clear.

So you could hear:

• Спасибо, но не хочу принимать такой дорогой подарок.

That is understandable and natural in conversation.

But я is also perfectly normal here. It makes the sentence a bit clearer and slightly more explicit:

• Спасибо, но я не хочу...

After но, keeping я sounds very natural.

Yes, Russian word order is flexible, but this version is the neutral, standard order.

Basic structure:

• я — subject
• не хочу — verb phrase
• принимать — infinitive
• такой дорогой подарок — object

A different order changes the emphasis, for example:

• Такой дорогой подарок я не хочу принимать.
  This puts special focus on such an expensive gift.

But the original sentence is the most straightforward and neutral way to say it.

Because но means but, and it connects two parts:

• Спасибо
• я не хочу принимать такой дорогой подарок

In Russian, a comma is normally placed before но.

So:

• Спасибо, но...
  is exactly what you would expect.

Russian has no articles like a or the.

So подарок can mean:

• a gift
• the gift

The exact meaning comes from context.

In this sentence, English often uses:

• such an expensive gift

But depending on the situation, it could also be:

• this/the expensive gift

Russian leaves that to context rather than using an article.

It is natural, but не хочу can sound a bit direct:

• I don’t want to accept...

A more polite refusal is often:

• Спасибо, но я не могу принять такой дорогой подарок.
  = Thank you, but I can’t accept such an expensive gift.

This sounds softer, because it suggests that accepting it would be inappropriate, rather than simply saying you do not want to.

So:

• не хочу принимать = direct refusal
• не могу принять = more polite/socially tactful refusal

The main stresses are:

• Спаси́бо
• но
• я
• не хочу́
• принима́ть
• тако́й
• дорого́й
• пода́рок

Stress is important in Russian, so it is helpful to learn words together with their stress marks.