Present, Future 気が弱い is [x] 気が弱くない is not [x] Past 気が弱かった was [x] 気が弱くなかった was not [x] Te-form, Continuative 気が弱くて is [x] and... 気が弱くなくて is not [x] and... Provisional 気が弱ければ if it is [x] 気が弱くなければ if it is not [x] Conditional 気が弱かったら when/if it is [x] 気が弱くなかったら when/if it is not [x] Adverbial 気が弱く [x]-ly Noun form 気が弱さ [x]-ness