揚子 ようこ江河 えがわ海豚 いるかではありませんでした
yōkoegawa irukadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 揚子江河海豚

1. Was not a Yangtze River dolphin.; Was not an Indo-Pacific finless porpoise.

Past/Perfective
Negative
Polite
Formal Register