PinoyBersyon: The Unusual Paragraph

Can you figure out why this paragraph is unusual?

This is an unusual paragraph. I'm curious though just how quickly you can find out what is so unusual about it. It looks so plain you would think nothing was wrong with it. In fact, nothing is wrong with it. It's just unusual though. Study this paragraph, its grammar, punctuation, capitalization, composition, or anything and think about it. You still may not find anything odd about it, but if you cautiously look at it and work at it, you just might find out what is actually so unusual or untypical about it.

This is unusual because this paragraph don't have any letter 'E' on it...