手形 てがた千鳥 ちどりであれば
tegatachidorideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 手形千鳥

1. If it were a handbill/note of exchange, a thousand chidori…; If it were in the form of a handbill/note of exchange…

Ba Conditional