致死 ちし せい兵器 へいきじゃなかったです
hi chi shiseie ikijanakattadesu

Noun
Desu Copula

The polite, past negative form of 非致死性兵器

1. Was not non-lethal weaponry.; Wasn't a non-lethal weapon.

Past/Perfective
Negative
Polite
Casual Register