FWIW, it is in "Beta" which means not finished. But more importantly, I believe the content for the lesser spoken languages is made from user contributions. I believe I saw that the Hawaiian so far has been made from a school in Hawaii. I think it possible for you to become a contributor yourself and help to make it better if you would like to! :)
Thank you for your reply. So kaua is dual? You said that it includes speaker and listener. Is it possible to use pehea kaua for how are you as in 2 listeners, not including the speaker?
I am familiar with a concept of dual, but Slovenian version...which is well..there is a lot of it :D
Kaua is we and includes the speaker. So when you say Pehea kaua, you're saying how are we referring to both yourself and the listener. Kaua is not used to how are you with two listeners and not the speaker. Kaua will always include the speaker. Even if you're speaking to more than one person using Pehea 'oe is ok.
I like to think that this is similar to how we would use it in English. for example people typically service providers like nurses and doctors will sometimes say " And how are we feeling today?" it could also be introducing us into future lessons where we would start asking group questions "how are we going to get there?" I dont know enough Hawaiian to know if thats how the sentence would start but im just throwing it out there.