A and An

Today, let's talk about "a" and "an". When I was in school, may I add, a long time ago, my teacher told us this simple rule. Use "a" for words beginning with a consonant letter....a pussy cat, a church mouse, a silly nanny; use "an" for words beginning with a vowel....an orang utan, an old horse, an idiot, and so on.

Actually, the choice depends on whether the word begins with a consonant sound or not. This may be right or wrong, and is a bit tricky, as some words may be pronounced differently with dialects from different parts of the world. Take the word "history". The "h" is usually prounounced, hence "a history". However, with Cockney English,  sometimes the word is pronounced with the "h" dropped.  Hence, "an historian" or "an historical novel".  Saying "an history", "an hotel", etc., is incorrect and is not in keeping with proper English pronunciation anywhere, and does not appear in standard writing.

Above everything, in proper English, with words beginning with "h" but not pronounced, "an" is used. "An hour", "an heir". This is correct.

"A" is also used for words beginning with a "You" sound.  Thus, we say "a used old bag" or "a United fan"

Finally (?) , common errors occur in report writing, where numbers are involved. These are usually out of sheer carelessness or ignorance. For example, "They are going to build a RM80 million sports complex down the road." "An" should be the correct word.  "With a Do-It-Yourself bookshelves and wardrobes available in the market, furniture makers are losing out to the departmental stores". The "a" should be dropped.