Level A1 Lesson 2 Plus - Using "a" or "an" Grammar Rules

So is it a or an?

 "a" should be used before words that begin with consonant sounds (b,c,d,f,g..)

I have A dog

I have A corvette

I have A union (union begins with the sound "yoo")

I have A one family home (one begins with the sound "wuh")

 "an" should be used before words that begin with vowel sounds (a,e,i,)

I have An ipad

I have An egg

I have An apricot

The exceptions to these rules are:

Abbreviations and Acronyms

Although it's not exactly an exception, the subject of abbreviations and acronyms can become somewhat confusing. It is important understand that even though a word is recited as "unidentified flying object" the abbreviation is "UFO" so

I saw An unidentified flying object today

I saw A UFO today (UFO begins with the sound "yoo")

The same goes with MRI and MBA

I had An MRI today(MRI begins with the sound "em")

I have An MBA (MBA begins with the sound "em"

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