The article has been devoted to the investigation of the category of modality in Germanic and Turkic languages. Modality is not a newly created phenomenon in the system of language. It is possible to meet the features characterizing modality in the specimens of folk literature, tales and sagas and in classic literature. In the Germanic linguistics the investigation of the analytic and synthetic ways of expressing modality is one of the important issues. It is necessary to note that this problem being a linguistic one also bears philosophic-logical characteristics. The role of verb forms and moods of verbs, modal words, the role of types of intonation in establishment of the conception of modality, the syntactic repetitions have been widely analyzed in the studies of Turkic languages.