YOU SAID:

he turned in the research paper on friday; otherwise, he would have not passed the class

INTO JAPANESE

彼は一所懸命勉強した、そうでなかったら、試験に落ちていただろう。

BACK INTO ENGLISH

He worked hard; otherwise he would have failed in the examination.

INTO JAPANESE

彼は一所懸命勉強した、そうでなかったら、試験に落ちていただろう。

BACK INTO ENGLISH

He worked hard; otherwise he would have failed in the examination.