How to say how long are you going to keep whimpering about that? you can't change the past. in Japanese
1)
いつまでいつまで(itsumade) (adv) how long?/till when?メソメソno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbしし(shi) (num) 10^24/septillion/quadrillionてるんだno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb。。(。) Japanese period "."過ぎ過ぎ(sugi) (n,n-suf) past/after/too/overてしまったno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbことこと(koto) (prt) particle indicating a command/particle indicating mild enthusiasm/particle indicating a gentle interrogative/particle used to soften a judgment or conclusion今更今更(imasara) (adv,n) now/at this late hourどうにもならないだろうno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb。。(。) Japanese period "."
