... adj…Particularly articles. The correct use of articles a/an is complex and difficult problem in English grammar. It requires learners to have a very good knowledge of articles and how to use them. Therefore, ... articles: The indefinite articles a/an The definite articles the The zero article (o) 2. Basic use of a/an a/.∂./in front of consonant sound: p, t, k, m, n, ... Conclusion The used articles, especially article a/an are rather a challenge for learners and for us also. Because of the complexities in using, article a/an may lead the misunderstanding...