This fact had not been brought to my notice by anybody.
This fact had not been brought to my notice by anybody.
This fact has not been brought to my notice by anybody.
This fact has not been brought to my notice by anybody.
This fact was not brought to my notice by anybody.
This fact was not brought to my notice by anybody.
This fact is not being brought to my notice by nobody.
This fact is not being brought to my notice by nobody.
Correct Answer:
This fact has not been brought to my notice by anybody.
This fact has not been brought to my notice by anybody.