地球 ちきゅう てき問題 もんだいではありませんでした
chikyūteki mondaidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 地球的問題

1. It was not the Earth's problem.; It wasn't a problem with the Earth.

Past/Perfective
Negative
Polite
Formal Register