certainly; without fail; by all means
Expresses strong desire or invitation; often used with ～たい, ～てください, or volitional forms.
Please do come and visit.
I definitely want to see that movie.
right and wrong; pros and cons
Formal noun; often used in discussions of morality or evaluation. Less common than the adverbial sense.
Let's check the facts before discussing right and wrong.
I really want to see that movie.
Voices are being raised questioning whether this plan is right or wrong.
Please do come visit us.
Experts debated the pros and cons of the policy.
是非 is the plain, everyday form meaning 'by all means' or 'certainly', while 是非是非 doubles it for extra emphasis, especially in invitations or strong wishes.
是非 means the rights and wrongs or pros and cons of a matter in an evaluative or argumentative sense, while 黒白 frames the same idea as a black-versus-white contrast.
是非 emphasizes the rightness or wrongness of an act itself, whereas 白黒 focuses on settling which side is guilty or correct.
是非 asks whether something is right or wrong, whereas 賛否 asks whether people support or oppose it.
是非 as a noun means right and wrong in a moral or logical sense, while 可否 is used for formal decisions about advisability.
rights and wrongs; relative merits
unavoidable; inevitable; no alternative
principle of being fair and just; unbiased policy