場当 ばあたり稽古 けいこじゃありませんでした
bātarikeikojārimasendeshita

Noun
Desu Copula

The polite, past negative form of 場当たり稽古

1. It wasn't impromptu.; It wasn't ad-libbed.; It wasn't done off the cuff.

Past/Perfective
Negative
Polite
Terminal Form