YOU SAID:
I have not imagined a future in which I am not here
INTO JAPANESE
私はここにいない未来を想像していません
BACK INTO ENGLISH
I do not imagine the future not here
INTO JAPANESE
ここにない未来は想像できません
BACK INTO ENGLISH
I can not imagine the future that is not here
INTO JAPANESE
ここにない未来は想像できません
BACK INTO ENGLISH
I can not imagine the future that is not here
That didn't even make that much sense in English.