The study aims at investigating the problems of pronunciation for 8th level of basic schools students in Khartoum Locality, Sahafa Basic Schools. The study employed test research method where the researcher used English language such as vowels and consonants in pronunciation words in the experimental group to help explaining things when they were not clear . The findings of the research support the hypothesis that mother tongue interference, inconsistency, spelling and sound system /differences between L1 and L2 affect pronunciation and lead the learners of other languages to mis pronunciation