How to say don't fail to mail this letter. in Japanese
1)
このこの(kono) (n) this手紙手紙(tegami) (n,adj-no) letterをを(wo) (prt) indicates direct object of action/indicates subject of causative expression/indicates an area traversed/indicates time over which action takes place/indicates point of departure or separation of action/indicates object of desire, like, hate,必ず必ず(kanarazu) (adv) always/without exception/necessarily/certainly/without fail/positively/invariably投函投函(toukan) (n,vs) mailing/postingしてして(shite) (prt) by/as/indicates patient of a causative expression/acts as a connective/adds emphasis/and then下さい下さい(kudasai) (exp) please give me/please do for me。。(。) Japanese period "."
