This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
First make your self clear that parts of speech is different from articles.To make you more clear let me say an example.
there are many kinds of pen like ball pen,ink pen and other types are Black pen,blue pen and much more.
So here the words an and the has two kinds of forms namely as articles and even as adjective (when formed into sentences).