| Modality | Propositional modality | a. Epistemic modality: speakers express their judgments about the factual states of the proposition |
| b. Evidential modality: speakers indicate the evidence they have for its factual status | ||
| Event modality | c. Deontic modality: the conditioning factors are external to the relevant individual | |
| d. Dynamic modality: the conditioning factors are internal to the relevant individual |