さとうもろこしでわありませんでした
砂糖蜀黍ではありませんでした
sa tōmorokoshidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of さとうもろこし

1. Was not a sugar uncle.; Was not a sweet old man.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana