著作 ちょさく けん登録 とうろく図書 としょ かんだったら
chosakukentōrokutoshokandattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 著作権登録図書館

1. If it were the copyright registration library; If it's the copyright registration library

Tara Conditional
Computing