I think this is the right place for this, but some people might not agree. Why do some people think that the correct expansion for "would've" is "would of", which is completely meaningless, rather than the correct "would have"?
No I don't think this is the proper place for this, and besides who thinks would've is a contraction for would of? two unrelated words inthis context. look at the site below.
http://www.enchantedlearning.com/grammar/contractions/list.shtml