This past Christmas Eve marked three months since my children and I returned from France, so it's fair to say that the French usage patterns that we still have now are the patterns that will endure for a while. Before we left I was so curious about how an extended stay in France would affect and impact our family's bilingual development! Everyone knows that language immersion will improve one's ability to understand and use a language, but exactly how much language fluency can a child gain in a few months of immersion? Here's what happened for our family: