YOU SAID:

i should have burned this place down when i got here

INTO JAPANESE

私がここに来たときに私はこの場所を燃やしたはずだったはずだ

BACK INTO ENGLISH

When I came here I should have burned this place

INTO JAPANESE

私がここに来たとき、私はこの場所を燃やしたはずだった

BACK INTO ENGLISH

When I came here I was supposed to burn this place

INTO JAPANESE

私がここに来たとき、私はこの場所を燃やすことになっていた

BACK INTO ENGLISH

When I came here, I was supposed to burn this place

INTO JAPANESE

私がここに来ると、私はこの場所を燃やすことになっていた

BACK INTO ENGLISH

When I came here, I was supposed to burn this place