ちょう高層 こうそう かみなり放電 ほうでんじゃなかったです
chōkōsō kaminarihōdenjanakattadesu

Noun
Desu Copula

The polite, past negative form of 超高層雷放電

1. Wasn't a super high-rise lightning discharge.; Wasn't a supertall building's lightning strike.

Past/Perfective
Negative
Polite
Casual Register