町石 ちょうせき卒塔婆 そとばであれば
chōsekisotobadeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 町石卒塔婆

1. If it were Machi Ishi Zukutaba; If Machi Ishi Zukutaba were the case

Ba Conditional