怠業 たいぎょう戦術 せんじゅつじゃありませんでした
ta igyōsenjutsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 怠業戦術

1. It wasn't a tactic of dereliction of duty.; It wasn't a tactic of neglecting work.

Past/Perfective
Negative
Polite
Terminal Form