YOU SAID:

I just did a science exam, and I think I failed yay

INTO JAPANESE

私はちょうど科学試験をしました、そして私はイェーイ失敗したと思います

BACK INTO ENGLISH

I just did a scientific exam, and I think yay failed

INTO JAPANESE

私はちょうど科学試験をしました、そして私はイェーイが失敗したと思います

BACK INTO ENGLISH

I just did a scientific exam, and I think yay failed