しろえびじゃなかったです
白蝦じゃなかったです
shiroebijanakattadesu

Noun
Desu Copula

The polite, past negative form of しらえび

1. Wasn't white shrimp.; Wasn't a white shrimp.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana