was (he/she/it was) is oni

oni = was (verb "to be"/"to exist" - past tense - he/she/it was - 3rd person singular) (some things Google found for "oni": a very common term; Oni is a third-person action video game; a first name; ONI is an acronym for Office of Naval Intelligence; Oni Press; a last name; means "themselves, they" in Croatian; means "they" in Czech, Polish, Serbian, Slovak, and Slovenian; means "you, one, they" in Esperanto; means "evil spirit, demon, or ogre" in Japanese; means "unless" in Welsh; name of cities and towns in Nigeria, Georgia, Norway, Indonesia and Russia)

Word derivation for "he/she/it was" (to exist) :
Basque = zen, Finnish = oli
Miresua = oni

Previously, oni was the Miresua word for big. I changed the word for big so that I could use it for this verb conjugation.