How is the English language different today from what it was years ago?

How many years ago are you talking about? Read the King James Bible or Shakespeare's plays to see what English was like around 1600. Read The Canterbury Tales (in their original form, not a modern translation) to see what it was like in the 1300s. If you can find it, look at a copy of Beowulf in its original form to see what it was like in the 800s. Michael Montagne