Japanese Verb Conjugations Group One

​Japanese verbs are roughly divided into three groups according to their dictionary form (basic form). The basic form of group one  verbs end with ~ u.   The verbs in this group are also called consonant-stem verbs or Godan-doushi (Godan verbs). Here are some of the conjugations of the various group one  verbs in Japanese. iku (to go) Informal Present(Dictionary Form) iku Formal Present(~ masu Form) ikimasu Informal Past (~ ta Form) itta Formal Past ikimashita Informal Negative(~ nai Form) ikanai Formal Negative ikimasen Informal Past Negative ikanakatta Formal Past Negative ikimasen deshita ~ te Form itte Conditional ikeba Volitional ikou Passive ikareru Causative ikaseru Potential ikeru Imperative(Command) ike yomu (to read) Informal Present(Dictionary Form) yomu Formal Present(~ masu Form) yomimasu Informal Past (~ ta Form) yonda Formal Past yomimashita Informal Negative(~ nai Form) yomanai Formal Negative yomimasen Informal Past Negative yomanakatta Formal Past Negative yomimasen deshita ~ te Form yonde Conditional yomeba Volitional yomou Passive yomareru Causative yomaseru Potential yomeru Imperative(Command) yome kaeru (to return) Informal Present(Dictionary Form) kaeru Formal Present(~ masu Form) kaerimasu Informal Past (~ ta Form) kaetta Formal Past kaerimashita Informal Negative(~ nai Form) kaeranai Formal Negative kaerimasen Informal Past Negative kaeranakatta Formal Past Negative kaerimasen deshita ~ te Form kaette Conditional kaereba Volitional kaerou Passive kaerareru Causative kaeraseru Potential kaereru Imperative(Command) kaere shiru (to know) Informal Present(Dictionary Form) shiru Formal Present(~ masu Form) shirimasu Informal Past (~ ta Form) shitta Formal Past shirimashita Informal Negative(~ nai Form) shiranai Formal Negative shirimasen Informal Past Negative shiranakatta Formal Past Negative shirimasen deshita ~ te Form shitte Conditional shireba Volitional shirou Passive shirareru Causative shiraseru Potential shireru Imperative(Command) shire    tsuku (to arrive)   Informal Present(Dictionary Form) tsuku Formal Present(~ masu Form) tsukimasu Informal Past (~ ta Form) tsuita Formal Past tsukimashita Informal Negative(~ nai Form) tsukanai Formal Negative tsukimasen Informal Past Negative tsukanakatta Formal Past Negative tsukimasen deshita ~ te Form tsuite Conditional tsukeba Volitional tsukou Passive tsukareru Causative tsukaseru Potential tsukeru Imperative(Command) tsuke wakaru (to understand) Informal Present(Dictionary Form) wakaru Formal Present(~ masu Form) wakarimasu Informal Past (~ ta Form) wakatta Formal Past wakarimashita Informal Negative(~ nai Form) wakaranai Formal Negative wakarimasen Informal Past Negative wakaranakatta Formal Past Negative wakarimasen deshita ~ te Form wakatte Conditional wakareba Volitional wakarou Passive wakarareru Causative wakaraseru Potential -------- Imperative(Command) wakare kakaru (to take) Informal Present(Dictionary Form) kakaru Formal Present(~ masu Form) kakarimasu Informal Past (~ ta Form) kakatta Formal Past kakarimashita Informal Negative(~ nai Form) kakaranai Formal Negative kakarimasen Informal Past Negative kakaranakatta Formal Past Negative kakarimasen deshita ~ te Form kakatte Conditional kakareba Volitional kakarou Passive -------- Causative -------- Potential -------- Imperative(Command) -------- okuru (to send) Informal Present(Dictionary Form) okuru Formal Present(~ masu Form) okurimasu Informal Past (~ ta Form) okutta Formal Past okurimashita Informal Negative(~ nai Form) okuranai Formal Negative okurimasen Informal Past Negative okuranakatta Formal Past Negative okurimasen deshita ~ te Form okutte Conditional okureba Volitional okurou Passive okurareru Causative okuraseru Potential okureru Imperative(Command) okure uru (to sell) Informal Present(Dictionary Form) uru Formal Present(~ masu Form) urimasu Informal Past (~ ta Form) utta Formal Past urimashita Informal Negative(~ nai Form) uranai Formal Negative urimasen Informal Past Negative uranakatta Formal Past Negative urimasen deshita ~ te Form utte Conditional ureba Volitional urou Passive urareru Causative uraseru Potential ureru Imperative(Command) ure aruku (to walk) Informal Present(Dictionary Form) aruku Formal Present(~ masu Form) arukimasu Informal Past (~ ta Form) aruita Formal Past aruikimashita Informal Negative(~ nai Form) arukanai Formal Negative arukimasen Informal Past Negative arukanakatta Formal Past Negative arukimasen deshita ~ te Form aruite Conditional arukeba Volitional arukou Passive arukareru Causative arukaseru Potential arukeru Imperative(Command) aruke asobu (to play) Informal Present(Dictionary Form) asobu Formal Present(~ masu Form) asobimasu Informal Past (~ ta Form) asonda Formal Past asobimashita Informal Negative(~ nai Form) asobanai Formal Negative asobimasen Informal Past Negative asobanakatta Formal Past Negative asobimasen deshita ~ te Form asonde Conditional asobeba Volitional asobou Passive asobareru Causative asobaseru Potential asoberu Imperative(Command) asobe au (to meet) Informal Present(Dictionary Form) au Formal Present(~ masu Form) aimasu Informal Past (~ ta Form) atta Formal Past aimashita Informal Negative(~ nai Form) awanai Formal Negative aimasen Informal Past Negative awanakatta Formal Past Negative aimasen deshita ~ te Form atte Conditional aeba Volitional aou Passive awareru Causative awaseru Potential aeru Imperative(Command) ae hairu (to enter) Informal Present(Dictionary Form) hairu Formal Present(~ masu Form) hairimasu Informal Past (~ ta Form) haitta Formal Past hairimashita Informal Negative(~ nai Form) hairanai Formal Negative hairimasen Informal Past Negative hairanakatta Formal Past Negative hairimasen deshita ~ te Form haitte Conditional haireba Volitional hairou Passive hairareru Causative hairaseru Potential haireru Imperative(Command) haire hajimaru (to begin, to start) Informal Present(Dictionary Form) hajimaru Formal Present(~ masu Form) hajimarimasu Informal Past (~ ta Form) hajimatta Formal Past hajimarimashita Informal Negative(~ nai Form) hajimaranai Formal Negative hajimarimasen Informal Past Negative hajimaranakatta Formal Past Negative hajimarimasen deshita ~ te Form hajimatte Conditional hajimareba Volitional hajimarou Passive -------- Causative -------- Potential -------- Imperative(Command) -------- motsu (to have) Informal Present(Dictionary Form) motsu Formal Present(~ masu Form) mochimasu Informal Past (~ ta Form) motta Formal Past mochimashita Informal Negative(~ nai Form) motanai Formal Negative mochimasen Informal Past Negative motanakatta Formal Past Negative mochimasen deshita ~ te Form motte Conditional moteba Volitional motou Passive motareru Causative motaseru Potential moteru Imperative(Command) mote narau (to learn) Informal Present(Dictionary Form) narau Formal Present(~ masu Form) naraimasu Informal Past (~ ta Form) naratta Formal Past naraimashita Informal Negative(~ nai Form) narawanai Formal Negative naraimasen Informal Past Negative narawanakatta Formal Past Negative naraimasen deshita ~ te Form naratte Conditional naraeba Volitional naraou Passive narawareru Causative narawaseru Potential naraeru Imperative(Command) narae omou (to think) Informal Present(Dictionary Form) omou Formal Present(~ masu Form) omoimasu Informal Past (~ ta Form) omotta Formal Past omoimashita Informal Negative(~ nai Form) omowanai Formal Negative omoimasen Informal Past Negative omowanakatta Formal Past Negative omoimasen deshita ~ te Form omotte Conditional omoeba Volitional omoou Passive omowareru Causative omowaseru Potential omoeru Imperative(Command) omoe oyogu (to swim) Informal Present(Dictionary Form) oyogu Formal Present(~ masu Form) oyogimasu Informal Past (~ ta Form) oyoida Formal Past oyogimashita Informal Negative(~ nai Form) oyoganai Formal Negative oyogimasen Informal Past Negative oyoganakatta Formal Past Negative oyogimasen deshita ~ te Form oyoide Conditional oyogeba Volitional oyogou Passive oyogareru Causative oyogaseru Potential oyogeru Imperative(Command) oyoge tatsu (to stand) Informal Present(Dictionary Form) tatsu Formal Present(~ masu Form) tachimasu Informal Past (~ ta Form) tatta Formal Past tachimashita Informal Negative(~ nai Form) tatanai Formal Negative tachimasen Informal Past Negative tatanakatta Formal Past Negative tachimasen deshita ~ te Form tatte Conditional tateba Volitional tatou Passive tatareru Causative tataseru Potential tateru Imperative(Command) tate utau (to sing) Informal Present(Dictionary Form) utau Formal Present(~ masu Form) utaimasu Informal Past (~ ta Form) utatta Formal Past utaimashita Informal Negative(~ nai Form) utawanai Formal Negative utaimasen Informal Past Negative utawanakatta Formal Past Negative utaimasen deshita ~ te Form utatte Conditional utaeba Volitional utaou Passive utawareru Causative utawaseru Potential utaeru Imperative(Command) utae kaku (to write) Informal Present(Dictionary Form) kaku Formal Present(~ masu Form) kakimasu Informal Past (~ ta Form) kaita Formal Past kakimashita Informal Negative(~ nai Form) kakanai Formal Negative kakimasen Informal Past Negative kakanakatta Formal Past Negative kakimasen deshita ~ te Form kaite Conditional kakeba Volitional kakou Passive kakareru Causative kakaseru Potential kakeru Imperative(Command) kake nomu (to drink) Informal Present(Dictionary Form) nomu Formal Present(~ masu Form) nomimasu Informal Past (~ ta Form) nonda Formal Past nomimashita Informal Negative(~ nai Form) nomanai Formal Negative nomimasen Informal Past Negative nomanakatta Formal Past Negative nomimasen deshita ~ te Form nonde Conditional nomeba Volitional nomou Passive nomareru Causative nomaseru Potential nomeru Imperative(Command) nome kiku (to listen) Informal Present(Dictionary Form) kiku Formal Present(~ masu Form) kikimasu Informal Past (~ ta Form) kiita Formal Past kikimashita Informal Negative(~ nai Form) kikanai Formal Negative kikimasen Informal Past Negative kikanakatta Formal Past Negative kikimasen deshita ~ te Form kiite Conditional kikeba Volitional kikou Passive kikareru Causative kikaseru Potential kikeru Imperative(Command) kike kau (to buy) Informal Present(Dictionary Form) kau Formal Present(~ masu Form) kaimasu Informal Past (~ ta Form) katta Formal Past kaimashita Informal Negative(~ nai Form) kawanai Formal Negative kaimasen Informal Past Negative kawanakatta Formal Past Negative kaimasen deshita ~ te Form katte Conditional kaeba Volitional kaou Passive kawareru Causative kawaseru Potential kaeru Imperative(Command) kae