Dynamic modality is a

linguistic modality In linguistics and philosophy, modality refers to the ways language can express various relationships to reality or truth. For instance, a modal expression may convey that something is likely, desirable, or permissible. Quintessential modal ex ...

that is the ability or requirement of the subject to do something. Dynamic modality is non-

subjective Subjective may refer to: * Subjectivity, a subject's personal perspective, feelings, beliefs, desires or discovery, as opposed to those made from an independent, objective, point of view ** Subjective experience, the subjective quality of conscio ...

in contrast to the similar

deontic modality Deontic modality (abbreviated ) is a linguistic modality that indicates how the world ought to be according to certain norms, expectations, speaker desires, etc. In other words, a deontic expression indicates that the state of the world (where 'worl ...

. Dynamic modality is expressed with " can" or " will."

References

{{Formal semantics Grammatical moods Formal semantics (natural language)