The main aim of the master\u27s thesis is to gather as much information as possible on early second language acquisition, types of bilingualism and language changes that occur in early second language acquisition and bilingualism. The main objective was visiting a 21-month-old child, regularly for one hour per week, for a period of one year, with whom the author communicated exclusively in English. The purpose of this was to determine the possibilities of developing the earliest type of bilingualism possible in a child living in an all Slovenian family. The fundamental research question was whether a constant but relatively short (1x per week) form of social interaction could result in development of this form of bilingualism. The author co...