揚子 ようこ こう わにではありませんでした
yōkokōwanidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 揚子江鰐

1. Was not a Yangtze alligator.; Was not an alligator of the Yangtze River.

Past/Perfective
Negative
Polite
Formal Register