本ほん を 買かいません でした か?hon wo kaimasen desita ka?Didn't you buy a book?Breakdown of hon wo kaimasen desita ka?ですdesuto be本ほんhonbookかkaquestion particle買かうkauto buyをwodirect object particleElon.io is an online learning platformWe have hundreds of Japanese lessons and thousands of exercises.Start learning Japanese nowNihon-shiki romanizationwatasi ha tyuugoku kara kimasitaHepburn romanizationwatashi wa chuugoku kara kimashita