Present, Future 頬張る, 頬張ります [does], will [do] 頬張らない, 頬張りません doesn't [do], will not [do] Past 頬張った, 頬張りました [did] 頬張らなかった, 頬張りませんでした didn't [do] Te-form, Continuative 頬張って, 頬張りまして 頬張らないで, 頬張りませんで 頬張らなくて Progressive 頬張っている, 頬張っています [doing], to be [doing] 頬張っていない, 頬張っていません not [doing] Volitional 頬張ろう, 頬張りましょう let's [do]!, I/we will [do], I/we intend to [do] 頬張るまい, 頬張りますまい I will not [do], I do not intend to [do] Imperative 頬張れ, 頬張りなさい [do] ! 頬張るな, 頬張りなさるな don't [do] ! Request 頬張ってください please [do] 頬張らないでください please don't [do] Provisional 頬張れば if X [does], if X [is ~] 頬張らなければ if X doesn't [do], if X [is not ~] Conditional 頬張ったら, 頬張りましたら if X were to [do], when X [does] 頬張らなかったら, 頬張りませんでしたら if X weren't to [do], when X doesn't [do] Potential 頬張れる, 頬張れます be able to [do], can [do] 頬張れない, 頬張れません not be able to [do], can't [do] Passive, Respectful 頬張られる, 頬張られます is [done] (by ...), will be [done] (by ...) 頬張られない, 頬張られません isn't [done] (by ...), will not be [done] (by ...) Causative 頬張らせる, 頬張らせます makes/will make (someone) [do] 頬張らせない, 頬張らせません doesn't/won't make (someone) [do] Causative passive 頬張らせられる, 頬張らせられます is made/will be made to [do] (by someone) 頬張らせられない, 頬張らせられません isn't made/won't be made to [do] (by someone) ~たい form 頬張りたい want to [do] 頬張りたくない don't want to [do]