How to say you should have warned him sooner. in Japanese
1)
もっともっと(motto) (adv) more/even more/longer/further早く早く(hayaku) (adv) early/soon/quickly/swiftly/rapidly/fast彼彼(kare) (ok) that , or something understood without naming it directly)/that person/over there/hey/eh?/thatにに(ni) (prt) indicates such things as location of person or thing, location of short-term action, etc.注意注意(chuui) (n,vs) caution/being careful/attention/warning/adviceし(num) 10^24/septillion/quadrillionてやればよかったno dictionary result, likely a conjigated verbのにのに(noni) (prt) although/when/and yet/despite this/in spite of/even though/but even so/but even then/however/nevertheless/for all that/notwithstanding that/while/if only/i wish/i tell you/you should do/in order to。。(。) Japanese period "."
