YOU SAID:
The dog set his owner on fire
INTO JAPANESE
犬が飼い主に火をつけた
BACK INTO ENGLISH
dog set owner on fire
INTO JAPANESE
犬が飼い主に火をつける
BACK INTO ENGLISH
dog sets owner on fire
INTO JAPANESE
犬が飼い主に火をつける
BACK INTO ENGLISH
dog sets owner on fire
That didn't even make that much sense in English.