K -T 境界 ではありませんでした keitiukyōkaidewārimasendeshita
keitiukyōkaidewārimasendeshita
Noun
, Desu Copula
The polite, past negative form of K-T境界
1. Was not the K-T boundary.
Past/Perfective
, Negative
, Polite
, Formal Register
, Geology
Word Pronunciation
文
No variants available for this word.