"I knew it __ you" (3)
I believe the answer is:
was
(Other definitions for was that I've seen before include "(He/she/it) existed" , "'Is, in the past (3)'" , "Did live" , "Is no longer" , "(I/he/she/it) existed" .)
I believe the answer is:
was
(Other definitions for was that I've seen before include "(He/she/it) existed" , "'Is, in the past (3)'" , "Did live" , "Is no longer" , "(I/he/she/it) existed" .)