複素 ふくそ たまき はじめじゃありませんでした
fukusotamaki hajimejārimasendeshita

Noun
Desu Copula

The polite, past negative form of 複素環基

1. Was not a heterocyclic base.; Was not a heterocyclic group.

Past/Perfective
Negative
Polite
Terminal Form
Chemistry