The following attitudes of the speaker towards his proposition generate different Deontic modalities:

Deontic modalities
modetermspeaker's attitudeexample
directiveobligationI require that pHe must go.
permissionI allow that pHe may go.
commissivecommitmentI grant that pYuc. He'l u bine'.

Variants of these modal relations have an unidentified entity in the place of the speaker and/or a participant of p as the “addressee” of the modal operation.