İstem koruma kapsamını belirliyor, değil mi?

That is a very reasonable question, because istem can have different meanings depending on context.

In everyday Turkish, learners more often meet words like:

• istek = request, wish
• istemek = to want, to ask for

But in technical or legal language, istem can mean something like claim, especially in patent language. So in this sentence, it is probably a specialized term, not the everyday meaning desire.

So the key point is:

• istem here is likely a technical noun
• its exact meaning depends on the field
• in a patent context, it usually means claim

This part is packed with useful Turkish grammar.

The base phrase is:

• koruma kapsamı = scope of protection

This is a noun compound. In Turkish, compounds like this often work as:

• X Y-si / Y-sı / Y-su / Y-sü

Here:

• koruma = protection
• kapsam = scope
• kapsamı = its scope / scope of ...

So:

• koruma kapsamı = protection scope / the scope of protection

Then the sentence uses this as a definite direct object, so it takes the accusative ending:

• koruma kapsamı
  • -nı → koruma kapsamını

That -nı is the accusative ending here. The n appears because the noun already ends in the 3rd-person possessive form -ı.

So the structure is:

• koruma
  • kapsam-ı
    • -nı
• protection + scope-of + definite object marker

Turkish does not have articles like English the and a/an.

Instead, Turkish shows definiteness in other ways, especially through:

• context
• word order
• case endings

In this sentence, definiteness is strongly signaled by the accusative ending on the object:

• koruma kapsamını

That tells you the speaker is talking about a specific, identifiable scope of protection, not just any scope in general.

So even though there is no separate word for the, Turkish grammar is still marking that idea.

Because istem is the subject, and subjects in Turkish usually appear with no special ending in the basic form.

So here:

• İstem = subject
• koruma kapsamını = direct object
• belirliyor = verb

Turkish often leaves the subject in the plain form, while the direct object gets the accusative if it is specific/definite.

So the contrast is normal:

• subject: istem
• definite object: koruma kapsamını

Both forms are possible in Turkish, but they give slightly different feels.

• belirliyor = present continuous form
• belirler = aorist/simple present form

In English, a general truth is often expressed with the simple present, but Turkish often uses -iyor in explanations, descriptions, and statements of what something does.

So belirliyor can sound like:

• is determining
• or more naturally in English, just determines

If you used belirler, it would sound more like a formal rule, principle, or general statement.

Very roughly:

• belirliyor = common in explanatory speech
• belirler = more formal, rule-like, textbook-like

The dictionary form is:

• belirlemek = to determine

To make the present continuous, Turkish uses -(I)yor.

But when a verb stem ends in -a or -e, that vowel usually drops before -yor.

So:

• belirle-
  • -iyor → belirliyor

This same pattern happens in many verbs:

• beklemek → bekliyor
• anlamak → anlıyor
• söylemek → söylüyor

So belirliyor is completely regular.

Here, değil mi works like a tag question or a confirmation check.

It is similar to English:

• ..., isn’t it?
• ..., right?
• ..., correct?

So the speaker is not asking a completely neutral question. They are saying something and asking the listener to confirm it.

That is the key nuance:

• statement + değil mi? = This is true, right?

Even though değil literally means not/is not, in this pattern değil mi? functions as a set expression for confirmation.

Because Turkish tag questions do not usually copy the auxiliary system the way English does.

English says:

• It determines the scope, doesn’t it?

Turkish very often just uses:

• ..., değil mi?

This is much more general. It does not need to match tense and person in the same way English tags do.

So instead of building a special tag from the main verb, Turkish often uses the all-purpose confirmation tag:

• değil mi?

That is one reason it is so common and useful.

Yes. That would also be grammatical, but the meaning is a little different.

• İstem koruma kapsamını belirliyor mu? = a neutral yes/no question
• İstem koruma kapsamını belirliyor, değil mi? = a confirmation-seeking question

So:

• ... mu? asks for information
• ..., değil mi? asks for agreement or confirmation

In English, the difference is similar to:

• Does the claim determine the scope of protection?
• The claim determines the scope of protection, right?

This is the normal Turkish pattern:

• Subject + Object + Verb

So here:

• İstem = subject
• koruma kapsamını = object
• belirliyor = verb

Turkish verbs often come at the end of the clause.

English speakers are used to:

• Subject + Verb + Object

But Turkish usually prefers:

• Subject + Object + Verb

That said, Turkish word order is somewhat flexible, and different orders can be used for emphasis. But the version in your sentence is the most straightforward, neutral order.

Yes. The question particle mi / mı / mu / mü is written separately from the word before it.

So:

• değil mi
• not değilmi

This is a very important spelling rule in Turkish.

Also, the form changes by vowel harmony in many cases:

• mı / mi / mu / mü

Here it is mi because it follows değil, whose final vowel is i.

So the spelling in the sentence is exactly right:

• değil mi?