摘要:Abstract This study investigated common English language errors made by Kazakh and Russian First Language speakers. The study examined errors in a corpus of 32 compositions and 32 translations written by 32 participants. Errors were identified and classified into some categories. The seven most common errors committed by the participants were, pluralization, subject-verb agreement, omission or misuse of articles, wrong choice of words, omission or misuse of prepositions, spelling, misuse of like+Ving form. The study is important to educators and study material developers who should become aware of the kind of errors that their target learners make, so they can take into consideration while preparing the teaching material. For learners, error analysis is important as it shows the areas of difficulty in their writing. The pedagogical implications for future study are included at the end of this research paper.