磯蚯蚓 いそめじゃなかったです
isomejanakattadesu

Noun
Desu Copula

The polite, past negative form of 磯蚯蚓

1. Wasn't a sandworm.; Wasn't an isokiryu (a type of sandworm).

Past/Perfective
Negative
Polite
Casual Register