YOU SAID:
I didn't do what he had had said I used to say I do
INTO JAPANESE
私は彼が言ったことをしませんでした
BACK INTO ENGLISH
I didn't do what he said
INTO JAPANESE
私は彼が言ったことをしませんでした
BACK INTO ENGLISH
I didn't do what he said
That didn't even make that much sense in English.