"He is insanely proud, but I do not know why."

Translation: Li estas freneze fiera, sed mi ne scias kial.

[tu.8zPhLw150yTOC]

Is "Li freneze estas fiera sed mi ne scias kial". It got marked wrong but I'm wondering if ot was because I missed the apostrophe after fiera, rather than the position of the adverb?

[BarbaraMorris]

Duolingo doesn't care about punctuation, so it was the position of the adverb.

[nessie724530]

What's the difference between scias and konas?

[miestasfern]

Scias - for knowledge
Konas - for familiarity / knowing a person

I know him - mi konas lin
I know that fact - mi scias tiun fakton

[KingLaSerna]

[Deleted]