The affix shows what is in focus
ang marks that focused noun.
| Focus | Verb example | ang marks... |
|---|---|---|
| actor | bumili | the doer |
| object | binili | the thing acted on |
| locative | binilhan | the place / source |
| benefactive | ibinili | the beneficiary |
The 'topic' shifts.
It's a system of choosing what's prominent.