YOU SAID:
Time to commit arson!
INTO JAPANESE
放火を犯す時が来ました!
BACK INTO ENGLISH
It's time to commit arson!
INTO JAPANESE
放火をする時が来ました!
BACK INTO ENGLISH
It's time to set fire!
INTO JAPANESE
火をつける時が来ました!
BACK INTO ENGLISH
It's time to light the fire!
INTO JAPANESE
火をつける時が来ました!
BACK INTO ENGLISH
It's time to light the fire!
That didn't even make that much sense in English.