脱化 だっか せき燃料 ねんりょうじゃありませんでした
da' kasekinenryōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 脱化石燃料

1. Was not decarbonizing.; Was not phasing out fossil fuels.

Past/Perfective
Negative
Polite
Terminal Form