The indefinite pronouns are joku, some one, jompi-kumpi, one of two; both the component parts are declined.
Nominative joku, jompikumpi, genitive jonkun, jomman-kumman, inessive jossakussa, jommassa-kummassa, etc.
Jokin, something, kukin, each, mikin, anyone or anything, kumpi-kin, one or other of two: decline only the first part.
Kukaan, mikään, kenkään, kumpikaan, kumpainenkaan, meaning anyone, anything, etc., are used only in negative sentences or in questions which are virtually negative; the suffix -kaan, -kään, is not declined.
Joka, any or every, is not declined. Joka mies, any man you like.
Reflexive Pronoun.
The reflexive pronoun is itse, self. It is declined. Genitive itsen, partitive itseä, etc. It always takes a pronominal suffix to define its meaning: itseäsi (partitive) thyself, itseksensä (translative) himself.
Among pronouns may also be reckoned the following:—
Muu, another (muuta, muun, etc., plur. muut).
Muutama or eräs, some one.