Covering the usage of "-suru", "-shita" and "-shiteiru" (imperfect, perfect and progressive tenses), this book aims to help the advanced learner understand the rules related to these forms while gaining a firm grounding in their proper usage. The book is also a valuable reference material for those involved in Japanese language education. Это и многое другое вы найдете в книге Japanese Grammar Practice (Advanced): Expressions Related to Tense and Aspect (Iori Isao, Shimizu Yoshiko)