@sidereal @Nichelle @futurebird English isn't my first language, but my impression is that most of them are pretty good at English grammar. (Though, apparently, they have a "voice" not unlike well-educated people from former British colonies in Africa - for depressingly obvious reasons). Of course, there might be subtleties I don't pick up on.In Danish, not only do they frequently screw up grammar, they're *dumber*. You can ask them questions that they get right in English, and they'll spew nonsense in Danish. This, to me, illustrates well how they work and what the "understanding" they seem to have actually is made of.