A couple of additional thoughts:
America is a melting pot - people come from all over the world and bring words with them. Our country is only 250 years old, so we don't really have our own words (American English stems from British English, which stems from various old world languages... but even these two forms of English are quite different)! Not to mention dialects...
Sub-languages such as Ebonics are beautiful additions that can make learning standard English more complex. Look it up!
Victoria L.
I very much second what Susan said. In addition, there are multiple ways of saying the same thing, but in different cases. For example if you do something biannually vs biennially. Or if you bisect something vs. dissect something. Both bi and di mean two, but one comes from latin and the other from greek. English is multiple languages in a trench coat. French latin, germanic language, and other languages have their place within it. Going over all the different cases and ways of saying something in the time it takes to speak is difficult, even for native speakers! P.S. Bisection is cutting something into two pieces. Dissection is cutting *into* something. something that occurs biannually happens twice in one year, and something that occurs biennially happens once every two years.11/23/24