Thyab RA. Most Common Grammatical Mistakes Made in English by L1 Arabic LearnersRobert Lado (1957), as well as most contrastive linguists, have shown that the learner’s first language may have a big role to play in the process of second language learning. Due to di. JLS [Internet]. 2023 Aug. 31 [cited 2025 Oct. 27];2(4):49-62. Available from: http://jls.tu.edu.iq/index.php/jls/article/view/119