Modality is a category of linguistic meaning having to do with the expression of possibility and necessity. The term ‘modality’ derives from the postclassical Latin word ‘modalitas’. Modality is an essential topic in the study of meaning, it comprises the most significant elements in human language and contains people’s perception of everyday items, phenomena, notions, etc. When talking about the means of expressing modality, we come across different classifications of means among the scholars. The founder of the English study in Russia B. A. Ilysh says: “Modality can be expressed in the sentence with the help of different means: modal words, modal verbs, sometimes just with the help of intonation and mood”. Accordingly, most of the scholars such as Vinogradov, Khlebnikova point out that as an extra-linguistic category modality in speech is realized by:
Lexical and grammatical expressive means of modality
