がわNS えぬえす利用 りよう しゃだったら
kikogawa enu esuriyōshadattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 着呼側NS利用者

1. If/When [someone] is a user of the Chiku-side NS; If [someone] were a Chiku-side NS user

Tara Conditional
Computing