Yes, I'm aware of that, I mean in the context of the last 100 years, apropos German-English, English-English, American-English, and so on. I think a bit of American vernacular has a German'ification phase, the languages seem to be intertwined, but this is just an opinion based on observation through personal life experience not some kind of academic point of view. I'd love to know the linguistics basis behind such intermingling.