I would say yes. ESL for 44 years. But I do keep up my native language. It doesn't take much. Just think in that language once in a while, read or watch med

I would say yes. ESL for 44 years. But I do keep up my native language. It doesn't take much. Just think in that language once in a while, read or watch media in that language occasionally. Even if it's just 1% of the media you consume, it will keep it fresh. But if you're completely isolated from it for decades, it will fade.