YOU SAID:
i have commit several war crimes
INTO JAPANESE
私はいくつかの戦争犯罪を犯しました
BACK INTO ENGLISH
I committed some war crimes
INTO JAPANESE
戦争犯罪を犯した
BACK INTO ENGLISH
Commit a war crime
INTO JAPANESE
戦争犯罪を犯す
BACK INTO ENGLISH
Commit war crimes
INTO JAPANESE
戦争犯罪を犯す
BACK INTO ENGLISH
Commit war crimes
That didn't even make that much sense in English.