かにでわありませんでした
蟹瞞ではありませんでした
kani dewārimasendeshita

Noun
Desu Copula

The polite, past negative form of かにだまし

1. Was not deceiving.; Was not misleading.; Was not hiding (something).

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana