complete denial of knowing (an incident in question)

to know through one's own experience

to have no way of knowing; to be completely ignorant of

to make known

(Classical Japanese, archaic, honorific) to know

God only knows

so, like that, in such a way, such

yes, yeah; it's like that; that's how it is; I see. (interjection to show that the speaker is paying attention)

seeming that, seeming like, appearing that

壮: vibrant, manly, brave