This article is an attempt to describe the Arabic language and the problem of language duplication faced by Arabic language learners in the United States. Duplicate language basically means "bilateral linguality" and is the word used to describe the situation involving the use of two different forms of speech living side by side and in different contexts. Language duplication is not just one of the problems that the Arabic language learner will encounter. First I will briefly describe the place of the Arabic language in the world of languages. I will touch lightly on some of the aspects that make it a difficult language to learn for speakers of Indo-European languages. Then I will describe the dual language problem in modern Arabic. Finally, I will make a proposal on a possible way of teaching the Arabic language, which directly addresses the problem of language duplication. A feature that is generally a slight shock to read and write is that English speakers usually wrote Semitic languages ​​without vowel signs that would indicate a short vowel. And Semitic...