I'm not bilingual (although I speak other languages to a certain level) but I'm fascinated with speech development at the moment because dd is 20 months and starting to put words together ('mummy sit down', etc.). I found this site about Brown's stages of English language development. So how and in what order do toddlers learn grammar in other languages, especially such as Czech or Polish where there are so many noun declensions as well as verb forms? If anyone can point me to other linguistic sites I'd be very grateful.