YOU SAID:
please buy my dinner for me
INTO JAPANESE
私のために私の夕食を買ってください
BACK INTO ENGLISH
Buy me dinner for me
INTO JAPANESE
私のために夕食を買って
BACK INTO ENGLISH
Bought supper for me
INTO JAPANESE
私のために夕食を買った
BACK INTO ENGLISH
Bought supper for me
Come on, you can do better than that.