つまぐろおうよこばいなら
褄黒大横這いなら
tsumaguroō yokobainara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of つまぐろおおよこばい

1. If/when the hem is black and spreads wide.; If/when one crawls wide with a black hem.

Nara Conditional
Usually Written in Kana