こしあぶらでわありませんでした
漉油ではありませんでした
koshiaburadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of こしあぶら

1. Was not filtering oil.; Was not strained oil.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana