弘仁 こうにん貞観 じょうがん時代 じだいだったら
kō ninjōganjidaidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 弘仁貞観時代

1. If it were the Kohnyo-Jogan period.; When it was the Kohnyo-Jogan period.

Tara Conditional