How influenced are we by our predeccesor's being immigrants?
A thought I've had only recently is that, although somewhere in my past I have an English degree, when I type I notice that my colloquial English is not grammatically correct.
I wish I could think of an example right now. It's a matter of misplaced phrases, for one.
But I wonder if that didn't come from learning my spoken English from people who were speaking it as a second language.