2 Replies ・ Started by astrometab at 2017-03-10 05:48:11 UTC ・ Last reply by ishikaze at 2017-03-17 02:34:39 UTC This is a discussion about うちゅう宇宙はむげん無限にぼうちょう膨張しつづ続けるのか？ Why is there a し before つづ 続けるのか? Is that a typo or is the し really supposed to be there? odraencoded at 2017-03-10 19:51:33 UTC suru する -> shi し ishikaze at 2017-03-17 02:34:39 UTC This is the "-masu stem + 続く" form, which indicates "keep on ~ing; keep on doing X", applied to the verb する. In this case, the verb in question is 膨張する "to expand". Log in to reply.