YOU SAID:
you know, i will have had eaten yesterday had i not eaten the day before
INTO JAPANESE
あなたが知っている、私は昨日食べていただろう私は前の日を食べていなかった
BACK INTO ENGLISH
You know, I would have eaten yesterday I had not eaten the day before
INTO JAPANESE
あなたが知っている、私は前日食べていなかった昨日食べただろう
BACK INTO ENGLISH
You know, I would not have eaten yesterday the day before
INTO JAPANESE
あなたが知っている、私は昨日前日食べていなかっただろう
BACK INTO ENGLISH
You know, I would not have eaten the day before yesterday
INTO JAPANESE
あなたが知っている、私は昨日前日を食べていなかっただろう
BACK INTO ENGLISH
You know, I would not have eaten the day before yesterday
That didn't even make that much sense in English.