F is a mix of P and H because it makes the same sound as PH! X is a mix of K and S because it makes the same sound as KS! me when almost no fanmade alphablocks for other languages or whatever EVER come up with original characters as if thats taboo or someth p much every fanmade alphablock ive seen when i was in the lbc were just "A Mix Of _ And _"
(c) alphablocks ltd bluezoo cbeebies