YOU SAID:
don't hit a boulder with an egg
INTO JAPANESE
卵で巨石をぶつけてはいけない
BACK INTO ENGLISH
You can't hit a boulder with an egg.
INTO JAPANESE
卵で巨石をぶつけることはできない。
BACK INTO ENGLISH
You can't hit a boulder with an egg.
That didn't even make that much sense in English.