特殊 とくしゅ潜航 せんこう ていじゃないです
tokushusen kōteijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 特殊潜航艇

1. It's not a special submersible.; It isn't a special submersible.

Negative
Polite
Casual Register