すずめのてっぽうじゃなかった
雀の鉄砲じゃなかった
suzumeno teppōjanakatta

Noun
Da Copula

The past negative form of すずめのてっぽう

1. Wasn't a sparrow's blunderbuss.; Wasn't a trivial matter.

Past/Perfective
Negative
Usually Written in Kana