青春 せいしゅん いち はちきっぷだったら
seishunjū hachikippudattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 青春18きっぷ

1. If I had a Seishun 18 Kippu; If I were to have a Seishun 18 Kippu

Tara Conditional