Learn Hardcore Turkish: Depodaki malzemeler için protokol kuralları net bir şekilde belirlenmeli. - Protocol rules should be clearly defined for the materials in the warehouse.

depo is the noun “warehouse” or “storage.”
-da is the locative suffix meaning “in.”
-ki turns the whole phrase into an adjective meaning “the one(s) in.”
Together, depodaki means “the (materials) in the warehouse.”

Why does kuralları have the suffix -ı, while protokol remains unmarked in protokol kuralları?

This is a noun–noun compound expressing possession:

The first noun (protokol) stays in its base form.
The second noun (kurallar) takes the 3rd-person singular possessive suffix -ı, indicating “rules of the protocol.”
So protokol kuralları literally means “the protocol’s rules.”

What role does için play, and why doesn’t malzemeler take another case ending before it?

için is a postposition meaning “for.” It attaches directly to a noun phrase without requiring an extra case suffix.

malzemeler stays in the nominative plural.
malzemeler için together means “for the materials.”

What does net bir şekilde mean, and why is bir included?

net means “clear.”
bir is the indefinite article “a/an,” required here to form an adverbial phrase with şekilde.
şekilde comes from şekil (“form, way”) + the locative -de, literally “in a way.”
So net bir şekilde = “in a clear way” (i.e. “clearly”).

Could you use net olarak instead of net bir şekilde?

Yes. net olarak (“clearly” using -olarak = “as, in the capacity of”) is grammatically correct and common.
However, net bir şekilde often feels more concrete (“in a clear manner”), while net olarak is slightly more abstract.

What is belirlenmeli, and how is this form built?

belirlenmeli means “must be determined” or “should be established.” It consists of:

belirle- (root “to determine/establish”)
-n- (passive marker “be …ed”)
-meli (necessity/obligation “must/should”)
No personal ending appears, so it’s understood as 3rd person.

Why is the verb at the end of the sentence in Turkish?

Turkish typically follows Subject-Object-Verb (SOV) order. Here:

Depodaki malzemeler için (adverbial phrase)
protokol kuralları (subject)
net bir şekilde (adverb)
belirlenmeli (verb)
The verb comes last, as is normal in Turkish syntax.

Why is the passive form belirlenmeli used instead of the active belirlemeli?

Using the passive (with -n- before -meli) focuses on the requirement itself (“the rules must be set”) without naming who will do it.
An active form, belirlemeli, would mean “someone must determine,” putting the actor in focus; the passive is more impersonal and common in official or procedural contexts.