YOU SAID:

i am electric my cousin is on fire

INTO JAPANESE

私は電気が燃えている私のいとこ

BACK INTO ENGLISH

I am burning is my cousin

INTO JAPANESE

私は私のいとこは、燃焼

BACK INTO ENGLISH

I burn my cousin

INTO JAPANESE

私は私のいとこを燃やす

BACK INTO ENGLISH

I burn my cousin