Present, Future 心がける, 心がけます [does], will [do] 心がけない, 心がけません doesn't [do], will not [do] Past 心がけた, 心がけました [did] 心がけなかった, 心がけませんでした didn't [do] Te-form, Continuative 心がけて, 心がけまして 心がけないで, 心がけませんで 心がけなくて Progressive 心がけている, 心がけています [doing], to be [doing] 心がけていない, 心がけていません not [doing] Volitional 心がけよう, 心がけましょう let's [do]!, I/we will [do], I/we intend to [do] 心がけまい, 心がけますまい I will not [do], I do not intend to [do] Imperative 心がけろ, 心がけよ, 心がけなさい [do] ! 心がけるな, 心がけなさるな don't [do] ! Request 心がけてください please [do] 心がけないでください please don't [do] Provisional 心がければ if X [does], if X [is ~] 心がけなければ if X doesn't [do], if X [is not ~] Conditional 心がけたら, 心がけましたら if X were to [do], when X [does] 心がけなかったら, 心がけませんでしたら if X weren't to [do], when X doesn't [do] Potential 心がけられる, 心がけられます be able to [do], can [do] 心がけられない, 心がけられません not be able to [do], can't [do] Passive, Respectful 心がけられる, 心がけられます is [done] (by ...), will be [done] (by ...) 心がけられない, 心がけられません isn't [done] (by ...), will not be [done] (by ...) Causative 心がけさせる, 心がけさせます makes/will make (someone) [do] 心がけさせない, 心がけさせません doesn't/won't make (someone) [do] Causative passive 心がけさせられる, 心がけさせられます is made/will be made to [do] (by someone) 心がけさせられない, 心がけさせられません isn't made/won't be made to [do] (by someone) ~たい form 心がけたい want to [do] 心がけたくない don't want to [do]