松材 まつざい線虫 せんちゅうじゃなかったです
matsu zai senchūjanakattadesu

Noun
Desu Copula

The polite, past negative form of 松材線虫

1. Wasn't pine wood nematode.; Wasn't a pine wood nematode.

Past/Perfective
Negative
Polite
Casual Register