Both my sons are far sharper with languages before the age of 5 then I ever hoped I'd be. Both kids speak Croatian, English and Dutch in that order of skill level. My wife and I speak only our native languages with the kids, Croatian and English respectively. The kids pick up Dutch at school. That makes one huge language mish-mash in their heads. They usually keep it pretty straight, which amazes the hell out of me. Indy, the oldest, loves telling us about his day at school. It usually starts in Croatian with some Dutch phrases thrown in. When I ask him a question in English, without skipping a beat, he answers in English. Sometimes they slip up a bit . . . "Hey Tata, vidi my brzi politie car. So fast, now it's weg!" - all three in one sentence.