YOU SAID:

Eat a cake and do not forget to wash your hands before doing so.

INTO JAPANESE

ケーキを食べたら、その前に手を洗うのを忘れないでください。

BACK INTO ENGLISH

Don't forget to wash your hands before eating the cake.

INTO JAPANESE

ケーキを食べる前に手を洗うことを忘れないでください。

BACK INTO ENGLISH

Don't forget to wash your hands before eating the cake.