Present, Future 吸う, 吸います [does], will [do] 吸わない, 吸いません doesn't [do], will not [do] Past 吸った, 吸いました [did] 吸わなかった, 吸いませんでした didn't [do] Te-form, Continuative 吸って, 吸いまして 吸わないで, 吸いませんで 吸わなくて Progressive 吸っている, 吸っています [doing], to be [doing] 吸っていない, 吸っていません not [doing] Volitional 吸おう, 吸いましょう let's [do]!, I/we will [do], I/we intend to [do] 吸うまい, 吸いますまい I will not [do], I do not intend to [do] Imperative 吸え, 吸いなさい [do] ! 吸うな, 吸いなさるな don't [do] ! Request 吸ってください please [do] 吸わないでください please don't [do] Provisional 吸えば if X [does], if X [is ~] 吸わなければ if X doesn't [do], if X [is not ~] Conditional 吸ったら, 吸いましたら if X were to [do], when X [does] 吸わなかったら, 吸いませんでしたら if X weren't to [do], when X doesn't [do] Potential 吸える, 吸えます be able to [do], can [do] 吸えない, 吸えません not be able to [do], can't [do] Passive, Respectful 吸われる, 吸われます is [done] (by ...), will be [done] (by ...) 吸われない, 吸われません isn't [done] (by ...), will not be [done] (by ...) Causative 吸わせる, 吸わせます makes/will make (someone) [do] 吸わせない, 吸わせません doesn't/won't make (someone) [do] Causative passive 吸わせられる, 吸わせられます is made/will be made to [do] (by someone) 吸わせられない, 吸わせられません isn't made/won't be made to [do] (by someone) ~たい form 吸いたい want to [do] 吸いたくない don't want to [do]