On grammatical class:
- mu'e
- abstractor: achievement (event) abstractor; x1 is the event-as-a-point/achievement of [bridi].
- pu'u
- abstractor: process (event) abstractor; x1 is process of [bridi] proceeding in stages x2.
- za'i
- abstractor: state (event) abstractor; x1 is continuous state of [bridi] being true.
- zu'o
- abstractor: activity (event) abstractor; x1 is abstract activity of [bridi] composed of x2.