Ohhh, all the kitties sound so adorable! I saw a kitty that also said something human-like in a Funny Video show (?), and I *think* he said "Oh no, oh no, oh no no noooo", or something along those lines. It was so cute.
Ginza will sometimes say "NOooooWWW???", and Pixie will say "Whyyyyyyyy?" Mozart and Kayla just meow, no discernable words.