In linguistics, modal particles are always uninflected words, and are a type of grammatical particle. They are used to indicate how the speaker thinks that the content of the sentence relates to the participants' common knowledge[1] or to add emotion to the meaning of the sentence.[2] Languages that use many modal particles in their spoken form include Dutch, Danish, German, Hungarian, Russian, Telugu, Nepali, Norwegian, Indonesian, Sinitic languages, and Japanese.[3] The translation is often not straightforward and depends on the context.