かぎょう変格 へんかく活用 かつようなら
kagyōhenkaku katsu yōnara

Noun
Da Copula

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

1. If/when… (for irregular verbs ending in -u); If it is… (for irregular verbs ending in -u)

Nara Conditional
Linguistics