On grammatical class:
- ca'u
- location tense relation/direction; forwards/to the front of ...
- ga'u
- location tense relation/direction; upwards/up from ...
- ni'a
- location tense relation/direction; downwards/down from ...
- ri'u
- location tense relation/direction; rightwards/to the right of ...
- ru'u
- location tense relation/direction; surrounding/annular ...
- ti'a
- location tense relation/direction; rearwards/to the rear of ...
- zu'a
- location tense relation/direction; leftwards/to the left of ...
- du'oi
- location tense relation/direction (angular); clockwise from..., locally rightwards/to the right of ...
- zu'au
- location tense relation/direction (angular); counterclockwise from..., locally leftwards/to the left of ...