Learn Turkish: Her toplumun kendi kuralları var. - Every society has its own rules.

In Turkish, you express "to have" by using the genitive-possessive structure combined with var (existent). Literally, this sentence says "Every society's (toplumun) own rules (kendi kuralları) exist (var)."

Why is there an -ı at the end of kuralları?

That -ı is the 3rd-person possessive suffix ("its"). It links the rules back to the society. So kural (rule) becomes kurallar (rules), and then kuralları (its rules), which completes the grammatical pair with toplumun (society's).

What does kendi mean here?

Kendi translates to "own" or "self". Here, it emphasizes that the rules belong specifically to that society ("its own rules"). It sits between the owner (toplumun) and the possessed object (kuralları) without breaking the grammatical link between them.

Why is toplum singular if we are talking about rules everywhere?

In Turkish, the word her (every/each) is always followed by a singular noun. Just like in English where we say "every society" instead of "every societies", Turkish uses her toplum.