移動 いどう せい こう気圧 きあつじゃありませんでした
idō sei kōkiatsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 移動性高気圧

1. Was not a high-pressure system.; Was not mobile.

Past/Perfective
Negative
Polite
Terminal Form