Overview of British vs. American English:

"If I'd only waited, I'd not be stuck here in this hole" - Coldplay, "Amsterdam"

Notice the "I'd not" - I would not. The British combine the I and the would.

The Americans combine the would and the not - "I wouldn't be stuck here in this hole."

Odd.

In other news, I've been starting to say "innit." I picked it up from watching too many Ali G youtube videos in the past couple weeks. Example: "It's impossible to get into that school, innit?"