tā tāua - our (singular, two people)
Ka herea e ia tā tāua kurī.He tied up our dog.Ka used to indicate the past - ka
I moe tā tāua pēpi i te moenga o tā rāua pēpi.Our baby slept in their baby's bed.Possessives - 'a' class - ā, tāku...
He tamaiti tā tāua.We have a child.Do you have any...? - He... ?