YOU SAID:

dave needs to lighten up

INTO JAPANESE

デイブは明るくする必要があります

BACK INTO ENGLISH

Dave needs to be bright

INTO JAPANESE

デイブは明るくなる必要がある

BACK INTO ENGLISH

Dave needs to be bright.

INTO JAPANESE

デイブは明るくする必要があります。

BACK INTO ENGLISH

Dave needs to be bright.