by Olga Koliichuk The answer is: A, and an. We use articles all the time. There are two types of articles : a/an, the.   a/an – Indefinite article the –  Definite article Today we will talk about the indefinite article. The indefinite article a has another form an if it stands before the word beginning with a… Continue reading What’s the Most Frequently Used Word in English? The Indefinite Article