because if you dont it is improper grammer. also try saying a apple, a orange, a egg, a igloo, ect. it is hard to say and it doesnt sound right
Words without vowels are unpronounceable.
A dog is an animal."A" goes before words that start with consonants and "an" goes before words that start with vowels.
An substitutes for a before certain vowels and before some words that begin with an h. The n separates the vowel sounds. Y-glide vowels sounds don't use an. A female sheep is called A ewe. He wears A uniform and carries AN umbrella. He heard A yapping dog.
No, you only use 'an' before vowels and an 'h', otherwise you should use 'a'. E.g. An apple An hotel (Yes I know it sounds weird but it's correct!) A mirage
The reason for using "an" before vowels is to create a smoother pronunciation. The sound of the word "a" before a vowel can clash with the vowel sound that follows it, so "an" is used instead. This is a grammatical rule that helps to improve the flow of speech.
There is no specific collective noun for the noun vowels, in which case a noun suitable for the situation can be use, for example a group of vowels, a string of vowels, a bunch of vowels, etc.
The Akkadian alphabet was the first to have vowels, before that all letters were consenants-Hebrew for a long time had no vowels.
EDUCATION
This was a process where English long vowels became, over time, short vowels that were pronounced one height higher than before. This, in essence, changed the pronunciation of English vowels.
A combining form makes use of a word root, and vowels.
an
not in the English language. But if you use chatspeak:l8rw8rw8rcb