よこばいガラガラへびじゃなかったです
横這いガラガラ蛇じゃなかったです
yokobai garagara hebijanakattadesu

Noun
Desu Copula

The polite, past negative form of よこばいガラガラへび

1. Wasn't slithering sideways like a rattlesnake.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana