なぎょう変格 へんかく活用 かつようだったら
na gyōhenkaku katsu yōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of ナ行変格活用

1. If/when… (na-row irregular conjugation); If it were…; Were it to be…

Tara Conditional
Linguistics