Indefinite pronouns (joku, jokin, kaikki)

When referring to unknown people or things, Finnish uses the indefinite pronouns joku and jokin. Standard Finnish makes a strict distinction between the two based on whether you are talking about a person or a thing:

  • joku = someone, somebody
  • jokin = something

When these pronouns act as the subject of a sentence, the verb takes the standard third-person singular ending.

Suddenly someone knocks on the door.
Yhtäkkiä joku koputtaa oveen.
Suddenly someone hears a strange step.
Yhtäkkiä joku kuulee oudon askeleen.
There is something here, because I hear a strange sound.
Täällä on jokin, koska kuulen oudon äänen.
Something knocks on the window, and it is a strange sound.
Jokin koputtaa ikkunaan, ja se on outo ääni.

Kaikki (Everyone / Everything)

The pronoun kaikki means "everyone," "everybody," or "everything."

An important rule to remember is that when kaikki refers to "everyone" performing an action, it requires a plural verb. Unlike English, which treats "everyone" as a singular subject ("everyone is"), standard Finnish treats it as plural ("everyone are"). The verb takes the third-person plural ending -vat/-vät.

This is a surprise, and everyone is a little afraid.
Tämä on yllätys, ja kaikki pelkäävät vähän.
It is a secret, but everyone knows it.
Se on salaisuus, mutta kaikki tietävät sen.
I notice that everyone loves a good surprise.
Huomaan, että kaikki rakastavat hyvää yllätystä.