YOU SAID:
my mom selled my cokies
INTO JAPANESE
私の母は私のcokiesを売った
BACK INTO ENGLISH
My mother sold my cokies
INTO JAPANESE
母は私のcokiesを売った
BACK INTO ENGLISH
Mother sold my cokies
INTO JAPANESE
母は私のcokiesを売った
BACK INTO ENGLISH
Mother sold my cokies
That didn't even make that much sense in English.