なぎょう変格 へんかく活用 かつようであれば
na gyōhenkaku katsu yōdeareba

Noun
Da Copula

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

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

Ba Conditional
Linguistics