植物 しょくぶつ せい繊維 せんいじゃなかったです
shokubutsu sei sen'ijanakattadesu

Noun
Desu Copula

The polite, past negative form of 植物性繊維

1. Wasn't plant-based fiber.; Wasn't vegetable fiber.

Past/Perfective
Negative
Polite
Casual Register