balearicislands bilingualism catalanlanguage catalonia code-switching(linguistics) congresses education english englishlanguage foreignelements grammar groupidentity guarani guaranilanguage heritagelanguagespeakers influenceonenglish kennettsquare language languageandculture languages languagesincontact linguisticminorities mayalanguage mexicannewspapers mexico migrantagriculturallaborers moroleón nativelanguage paraguay pennsylvania socialaspects sociolinguistics spain spanish spanishlanguage spanishnewspapers spokenspanish studyandteaching valencia(province) variation yucatánpeninsula