How did we suddenly get a generation or two who say "should of" ???
It is basic grammar that an apostrophe ' can be used to show a missing letter.
Thus " he should have " becomes " he should've " and the apostrophe designates we have dropped the "ha" out of the word. NOT should of
Like "would not" can be said or written " wouldn't "
It is basic year 5 stuff and now most of the younger teachers probably don't know.
Now we get SMS speak in bl00dy job applications for god's sake!!
I do a lot of technical document writing in my line of work, and small grammatical mistakes, such as using "of" instead of "have", can make all the difference in the meaning of a phrase.
It particularly pisses me off when I have to review a document for content, but end up having to correct the spelling and grammar of the tard who wrote it.
this young gent explains how it's meant to be. if you're not wearing it, u ain't spellin it proppa
I can'r make up my mind between the Nosh or the Funatic, maybe a Nirth sail as well! 
