すずめ鉄砲 てっぽうではありませんでした
suzumeno teppōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 雀の鉄砲

1. Was not a sparrow's blunderbuss.; Was not unskilled.; Was not a novice.

Past/Perfective
Negative
Polite
Formal Register