北 きた玉 たま時代 じだい

kita tamajidai

1. Not the Kitadama era.; It's not the Kitadama period.

1. Was the Northern Jade Age.

1. Northern Jade Period; Early Jade Period

1. It is not the Kita-Tama era.; It isn't the Kita-Tama period.

1. It's not the Northern Jade Era.; It isn't the Northern Jade Era.

1. It was the Northern Jade Age.

1. Northern Jade Era

1. It is not the Kita-Tama era.; It is not a Kita-Tama period.

1. It wasn't the Northern Jade Era.

1. Probably the Northern Jade Age.

1. It was not the Northern Jade Age.; It wasn't the Northern Jade Age.

1. It wasn't the Kita-Tama era.

1. Probably the Northern Jade Period.

1. Was not the Kita-Tama period.

1. If it had been the Kita-Tama era; If the Kita-Tama era were

1. If it were the Northern Jade Age; When it was the Northern Jade Age

1. If/When the Northern Jade Age…; During the Northern Jade Age…