Introspection has been leading me to think that in our minds there is 'no such thing' as seperate languages. (My own mind, anyway) I seem to have a huge vocabulary list of words and phrases in my head, and they seem to be linked to various people, so that when a person is in front of me, all the words they are likely to understand are 'highlighted' and the words that I don't expect the person to understand are like a dark button on a webpage - visible, but not clickable. It's not just about which language, but about what sorts of words a person is likely to know. I am noticing this because my ideas about what words DS12 know are noticibly wrong lately. His working vocabulary is much bigger than I expect.
hope this helps,
Grinity
