Modality is associated with metaphysics in the Middle Ages. In this association, it should be effective to feel that there is a need for superhuman and points outside the power of the human being in evaluating the propositions and verifying them truth, definitive and real. Because it is not possible to judge a statement such as tomorrow as real, definite and truth because the future is not known. The fact that a proposition sometimes makes people out of the human factor ability to make inferences and understand them also leaves those who want to try to understand it difficult. This study has been prepared with the hope of making a small contribution to these difficulties and we have tried to present our thoughts on the basis of studies emphasizing some features of modality. In our opinion, modality involves the determination of the judgement given by the speakers about other persons, objects and actions by the hearers about the re-judgment.These issues were also emphasized by the modal logic workers and philosophers (like Ibn Sina). Within this framework, this study includes reminding these issues expressed in modal logic, presenting linguistic modality studies and exemplifying this by us.
Keywords: Modal logic, modality, linguistic modality, linguistics, judgment