YOU SAID:
The doughnuts are eaten.
INTO JAPANESE
ドーナツは食べられます。
BACK INTO ENGLISH
Donuts can be eaten.
INTO JAPANESE
ドーナツを食べることができます。
BACK INTO ENGLISH
You can eat a donut.
INTO JAPANESE
あなたはドーナツを食べることができます。
BACK INTO ENGLISH
You can eat a donut.
That didn't even make that much sense in English.