My husband and I are French. Our little one is 17 months and she is going to a bilingual daycare (English / Chinese). (We will stay in USA 2 more years and then come back in France or move in another country, we don't know yet)
She can say a few words: maman, papa, bye-bye and "voir voir" (au revoir), no, wouaf wouaf (dog), bébé and baby, cake, bateau (boat in French)... She can understand when we speak French and she seams to understand English and Chinese too.
The problem is we don't know if at home we have to teach her words in French or English (we don't speak Chinese).