放射 ほうしゃ年代 ねんだい測定 そくていじゃありませんでした
hōshanendaisokuteijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 放射年代測定

1. Was not radiocarbon dating.; Was not dated by radiocarbon dating.

Past/Perfective
Negative
Polite
Terminal Form