Now I have a name for what it is that Lulu's doing:
code-switching.
Individuals who are bilingual (and I think Lulu can lay a stronger claim to that than either Walter or me at this point) do often switch back and forth between languages. I've found myself doing that when I'm talking by dropping German words into English sentences or reverting back to English for a word that I don't know in German. To her credit, Lulu is usually pretty consistent about using one language or the other or switching
between sentences, not in the middle of them.
I have noticed that even if I'm speaking German to her, she will respond to me in English unless I insist that she speak to me in German (and that's only if she wants something or is asking my permission). This is a change from her earlier responses when she would respond to me equally in German or English. And when I asked her this weekend, in German, why she doesn't speak German with me, she responded that she only speaks German with Daddy! While she does respond in German to Walter, she initiates conversations even with him (at least that I've casually, unscientifically observed) in English, too.
The interesting thing to me is how German has influenced her speech in English, too. I can definitely hear both grammatical structures in her speech but I think I recognize it more in
my native language than I do when she's speaking German. Because the auxillary (helping) verb in German is typically at the beginning and the action verb is at the end of a clause, we hear her adopting that grammatical pattern in her English sentences, too:
We are going to the house, Mama.
or
Wir sind zu Hause gehen, Mama.
becomes
We are to Hause going, Mama.
And she's certainly doing well in her mastery of irregular verb conjugation, both in English and German. I have yet to hear her say something like "runned" instead of "ran" and I think that's at least partly attributable to needing to know how to use that irregular verb in two languages?
Anyway, Lord knows I'm not a speech pathologist or child development specialist, but I do find what's going on in her brain very, very interesting....time will tell how it plays itself out as she gets older.