馬鹿 ばか松茸 まつたけではありませんでした
baka matsutakedewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 馬鹿松茸

1. Was not a fool, mushroom.; Was not a silly mushroom.

Past/Perfective
Negative
Polite
Formal Register