As someone who took at least five linguistics classes in college, you might call me a language expert. And as such, it's my duty to share a few undeniable truths about language learning that many people do not know. Did you know that if you're a native speaker of a language, congratulations, you are an expert in that language? It doesn't matter if you can't explain the exact reason for conjugations or word order. If you've spoken a language since birth, you will automatically know when somethin…