Apologies if this question is in the wrong place. I recently watched Human1011's video on pronoun evolution in English. Towards the end, he mentioned some dialectal pronoun declensions that I found very interesting, but I haven't been able to find out much information on them.
Firstly, in Torres Strait English, there's reportedly a dual system for personal pronouns: "mitu" (the two of us), "yutu" (the two of us) and "themtu" (the two of them).
Secondly, in Philippine English, there's apparently a clusivity modifier for first-person plural pronouns: "us-gang" (you and me).
I'm particularly interested in learning how these are used and if they have declensions. For example, is there a "we-gang" and "our-gang"/us-gang's" as well? Is there a "mitu's," "yutu's" and "themtu's" too?
Thank you for any information you might be able to give! :)