YOU SAID:
a peacock ate my ham sandwich.
INTO JAPANESE
孔雀は、私のハムのサンドイッチを食べた。
BACK INTO ENGLISH
Peacock is eating my ham sandwich.
INTO JAPANESE
孔雀は、私のハムのサンドイッチを食べています。
BACK INTO ENGLISH
Peacock is eating my ham sandwich.
That didn't even make that much sense in English.