早期 そうき警戒 けいかい管制 かんせい じゃないです
sō kikeikaikanseikijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 早期警戒管制機

1. It's not an early warning control aircraft.; It isn't an early warning control aircraft.

Negative
Polite
Casual Register