How to say it was careless of me to leave the gas on. in Japanese
1)
ガスガス(gasu) (n,adj-no) gasをを(wo) (prt) indicates direct object of action/indicates subject of causative expression/indicates an area traversed/indicates time over which action takes place/indicates point of departure or separation of action/indicates object of desire, like, hate,つけっぱなしにするなんてno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb私私(watashi) (pn,adj-no) i/meもも(mo) (prt) also/too/words of similar weight/about/as much as/even/more/further/other/again不注意不注意(fuchuui) (adj-na,n) carelessness/inattention/thoughtlessnessでで(de) (prt) indicates location of action/at/in/indicates time of action/indicates means of action/cause of effect/by/and then/so/indicates continuing action/ indicates certainty, emphasis, etc.したした(shita) (n) did/a past form of the previous verb/tongue/tongue-like object/clapper/talon。。(。) Japanese period "."
