This study focuses on heritage speakers’ ability to use their Arabic varieties and English in the construction of narratives of personal experience. This is critical because English, Colloquial Arabic (CA), and Standard Arabic (SA) are part of the sociolinguistic reality of the families and communities in which many heritage Arabic speakers live.

The study compares and contrastes heritage speakers’ Arabic and English narratives with respect to codes, registers, and functions in the narratives.

Fifteen Arabic and 15 English narratives from five participants, fluent in Arabic and English, were analyzed qualitatively and quantitatively.

The results reveal that, despite their fluency in their heritage language, respondents lack the sociolinguistic competence to socially and pragmatically deploy CA and SA appropriately in their narratives. In the Arabic narratives, respondents alternated frequently between CA and SA, but they were not always able to maintain the asymmetrical functions of CA and SA. English was used mainly as a compensation strategy, yet participants were able to integrate contextually appropriate English registers in discourse. In the English narratives, participants switched parsimoniously to Arabic for fillers and culturally specific terms and expressions. Moreover, they displayed a greater register control based on the events in their narratives.

This is one of few studies focusing on the sociolinguistic competence of heritage Arabic speakers. It is the first study to examine the distribution and functions of Arabic varieties and English in personal narratives rendered in Arabic and English.

The study indicates that a full understanding of heritage language acquisition requires an evaluation of the sociolinguistic aspects of language use. Heritage speakers are influenced by contextual factors and by the lack of a community of practice, elements that are key in understanding their sociolinguistic competence.