articles-a and an

Indefinite articles - a and an (determiners)

A and an are the indefinite articles. They refer to something not specifically known to the person you are communicating with.

A and an are used before nouns that introduce something or someone you have not mentioned before:-

For example:

"I saw an elephant this morning." "I ate a banana for lunch."

A and an are also used when talking about your profession:-

For example:

"I am an English teacher." "I am a builder."

#You use a when the noun you are referring to begins with a consonant (b, c, d, f, g, h, j, k, l, m, n, p, q, r, s, t, v, w, x, y or z), for example, "a city", "a factory", and "a hotel".

#You use an when the noun you are referring to begins with a vowel (a, e, i, o, u)

Pronunciation changes this rule. It's the sound that matters, not the spelling. 

Note!!!

If the next word begins with a consonant sound when we say it, for example, "university" then we usea. If the next word begins with a vowel sound when we say it, for example "hour" then we use an.

We say "university" with a "y" sound at the beginning as though it were spelt "youniversity". So, "a university" IS correct. We say "hour" with a silent h as though it were spelt "our". So, "an hour" IS correct. (Lots of people get this wrong - including native speakers.)

More!!!! - article 2

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