YOU SAID:

Eating pizza is a very great thing to do

INTO JAPANESE

べき非常に大きい事は、ピザを食べて

BACK INTO ENGLISH

Should eat pizza very big thing

INTO JAPANESE

ピザの非常に大きなものを食べる必要があります。

BACK INTO ENGLISH

You should eat pizza very much larger ones.

INTO JAPANESE

ピザ非常にはるかに大きいものを食べる必要があります。

BACK INTO ENGLISH

You should eat pizza very much larger ones.