On grammatical class:

ba'a
evidential: I expect - I experience - I remember.
ca'e
evidential: I define.
ja'o
evidential: I conclude.
ju'a
evidential: I state - (default) elliptical/non-specific basis.
ka'u
evidential: I know by cultural means (myth or custom).
pe'i
evidential: I opine (subjective claim).
ru'a
evidential: I postulate.
se'o
evidential: I know by internal experience (dream, vision, or personal revelation).
su'a
evidential: I generalize - I particularize; discursive: abstractly - concretely.
ti'e
evidential: I hear (hearsay).
za'a
evidential: I observe.
si'au
evidential: it seems that...