Edited sentence: , 36 courses are available to the public in English, three of which are constructed languages, including two fictional languages.As of February 1, 2021:.As of January 16, 2021:.As of June 28, 2020, 23 languages are available to speakers of languages other than English.Duolingo offers language courses for speakers of languages other than English, but most available languages are offered at least for English speakers as a course.In this list, the courses are ordered by number of active learners.Māori, Yiddish, and Haitian Creole courses for English speakers are planned to be added to Duolingo.There are only two exceptions: the Catalan and Guarani courses are exclusive to Spanish speakers.Three of the courses listed have been released for beta testing, but are not complete as of February 1, 2021