First of all, is important to know that beng bilingual is be able to use two or more languages. Sencond, bilingualism exists in many countries of the world, for example in North America 35% of the population is bilingual, in Canada 20% and in Europe 56% of some 25 countries is also bilingual, according to a study carried out by the European Commission. (2006). Obtaining bilingualism around the world occurs through the need of people who have traveled throughout history, whether for business, employment, religion, education, culture or conflict, to destinations such as the US, Canada, Australia, among others. Defining a person as bilingual is some what complex, since sometimes the person does not master both languages fluently and does not have an accent in one of the languages, this means that they can be monolingual because they master one language fluently and with an accent and the other not so much, that is to say that it can be monolingual of two languages. For this reason...