Present, Future 一口食べる, 一口食べます [does], will [do] 一口食べない, 一口食べません doesn't [do], will not [do] Past 一口食べた, 一口食べました [did] 一口食べなかった, 一口食べませんでした didn't [do] Te-form, Continuative 一口食べて, 一口食べまして 一口食べないで, 一口食べませんで 一口食べなくて Progressive 一口食べている, 一口食べています [doing], to be [doing] 一口食べていない, 一口食べていません not [doing] Volitional 一口食べよう, 一口食べましょう let's [do]!, I/we will [do], I/we intend to [do] 一口食べまい, 一口食べますまい I will not [do], I do not intend to [do] Imperative 一口食べろ, 一口食べよ, 一口食べなさい [do] ! 一口食べるな, 一口食べなさるな don't [do] ! Request 一口食べてください please [do] 一口食べないでください please don't [do] Provisional 一口食べれば if X [does], if X [is ~] 一口食べなければ if X doesn't [do], if X [is not ~] Conditional 一口食べたら, 一口食べましたら if X were to [do], when X [does] 一口食べなかったら, 一口食べませんでしたら if X weren't to [do], when X doesn't [do] Potential 一口食べられる, 一口食べられます be able to [do], can [do] 一口食べられない, 一口食べられません not be able to [do], can't [do] Passive, Respectful 一口食べられる, 一口食べられます is [done] (by ...), will be [done] (by ...) 一口食べられない, 一口食べられません isn't [done] (by ...), will not be [done] (by ...) Causative 一口食べさせる, 一口食べさせます makes/will make (someone) [do] 一口食べさせない, 一口食べさせません doesn't/won't make (someone) [do] Causative passive 一口食べさせられる, 一口食べさせられます is made/will be made to [do] (by someone) 一口食べさせられない, 一口食べさせられません isn't made/won't be made to [do] (by someone)