Examine these data from ainu, a language once widely spoken in Japan. How are yes/no questions formed in Ainu?
1. E koro michi okai ya?
Is your father at home?
2. Ku oman.
I am going.
3. E irushka.
You are angry.
4. ku koro po ek ya?
Does my child come?
5. Ku koro kikiri kotoise ya?
Do my insects swarm?
6. Po irak.
The child speaks.
7. Ku kon rusui.
I want it.
8. Kikiri kotoise.
Insects swarm.