2Ti 1:12  For the which cause I also suffer these things: nevertheless I am not ashamed: for I know (Strongs G1492, know) whom I have believed, and am persuaded that he is able to keep that which I have committed unto him against that day. 

Note. 'Know' is in the 'perfect' tense, which refers to something completed in the past.  It is also in the 'indicative' mood, which refers to a simple statement of fact.