褄黒 つまぐろ横這 よこばいではありませんでした
tsumaguroyokobaidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 褄黒横這

1. Was not black-bordered/hemmed.; Was not lying sideways.

Past/Perfective
Negative
Polite
Formal Register