Roland speaks our English very well.
But he but can only make out parts of written English.
A lot of his words (ka, khef, char, dan-tete, can-toi) have English meanings, so are they totally different languages?
Growing up in Gilead, was the High Speech his first language?
What does the High Speech sound/look like? And how different is it from English?
And when he addresses someone in the High Speech, would we understand it?

Lots of questions, I know.
But I look forward to hearing your thoughts...