yes; that is correct; right
um; errr; well
huh?
grrr; gah; must I?
good
good; excellent; fine; nice; pleasant; agreeable
yes; yeah; uh huh
ええ、そのとおりです。
Yes, that's right.
ええ、もちろん知っていますよ。
Yes, of course I know.
ええ、お気持ちはよく分かりますから安心して。
Yes, I understand your feelings well, so don't worry.