すずめのてっぽうじゃないです
雀の鉄砲じゃないです
suzumeno teppōjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of すずめのてっぽう

1. It's not a sparrow's blunderbuss.; It's not something trivial.

Negative
Polite
Casual Register
Usually Written in Kana