Examine the Codeswitching Usage in the Lexical Corpus of Saudi Students at Tertiary Education

The rapid development of internet globally has risen the bilingualism and multilingualism culture, where individuals who speak more than one language engages in alternating use of those languages within a singular conversation. In Saudi Arabia quite distinctly alternating between two languages is seen in the instructor's discourse and the student's interaction in English Language Classrooms. Kustati (2014) said that, Code-Switching help both lecturers and learners to identify the relationship among language culture and education. The study examines the Saudi Students code switching usage of lexical corpus from one language to another language. A non-probability sampling method was applied using selective sampling technique, with a sample of 35 students and 5 Instructors (3 Egyptians and 2 Saudi Instructors). The mixed research design was used. The findings of the study showed that the lexical switching was a natural inevitable process-for the Saudi students as Arabic being the native language (L1), and based on the contextual cognitive requirement to have clarity, and understanding of the target language L2, simultaneously there was a switch within the conversation.Also, it was observed that code switching had negative impact on the output of the learners acquisition of the language.