YOU SAID:

School is going to be a major oof

INTO JAPANESE

学校は主要な oof をするつもりです。

BACK INTO ENGLISH

School will do major oof.

INTO JAPANESE

学校は大きな役割を果たすだろう。

BACK INTO ENGLISH

The school will play a major role.

INTO JAPANESE

学校は大きな役割を果たすでしょう。

BACK INTO ENGLISH

The school will play a major role.