===Interrogative and Indefinitive Pronouns===
The words '''why''' and '''which''' and '''what''' and '''who''' are interrogative pronouns.
The words '''something''' and '''someone''' are indefinite pronouns.
====Forms====
If the '''ι''' has an accent on it, then the word is an interrogative pronoun. For example '''τίς''' means '''who''' or '''what'''. If the '''ι''' does not have an accent on it, then the word is an indefinite pronoun. For example '''τις''' means '''someone''' or '''something'''.
The masculine and feminine forms of the indefinite and interrogative pronoun are the same, and they decline as follows:
* τις (Nom, Sing)
* τινος (Gen, Sing)
* τινι (Dat, Sing)
* τινα (Acc, Sing)
* τινες (Nom, Plu)
* τινων (Gen, Plu)
* τισιν (Dat, Plu)
* τινας (Acc, Plu)
Neuter forms of the indefinite and interrogative pronoun decline as follwows:
* τι
* τινος
* τινι
* τι
* τινα
* τινων
* τισιν
* τινα