三脚 さんきゃく椅子 いすじゃありませんでした
sankyakuisujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 三脚椅子

1. It was not a three-legged stool.; It wasn't a tripod.

Past/Perfective
Negative
Polite
Terminal Form