"If I __ a Hammer"
I believe the answer is:
had
(Other definitions for had that I've seen before include "Was bound to be - caught" , "Taken in" , "Did trick" , "Possessed; cheated" , "Owned in the past" .)
I believe the answer is:
had
(Other definitions for had that I've seen before include "Was bound to be - caught" , "Taken in" , "Did trick" , "Possessed; cheated" , "Owned in the past" .)