Greetings. This form of the word "know" is used 7 times according to this fairly good interlinear.
It has helped me immensely in keeping my translations CONSISTANT.
http://www.scripture4all.org/
ginwskw vi present act 1 singular Used 7 times in NC
Textus Rec.) Luke 1:34
eipen de mariam proV ton aggelon pwV estai touto epei andra ou ginwskw
Luke 1:34 Said yet Mariam toward the messenger, "How shall be this, since a man not I-am-knowing/
ginwskw <1097> (5719) ?
1 Corinthians 13:12 For we are observing at-present through mirror in obscurity then yet face toward face at present I am knowing/
ginwskw <1097> (5719) out of part the yet I shall be knowing according as also I am known.
NKJV) Luke 1:34 Then Mary said to the angel, "How can this be, since I do not
know a man?"
NKJV) 1 Corinthians 13:12 For now we see in a mirror, dimly, but then face to face. Now I
know in part, but then I shall know just as I also am known.
Textus Rec.) 1 Corinthians 13:12
blepomen gar arti di esoptrou en ainigmati tote de proswpon proV proswpon arti ginwskw ek merouV tote de epignwsomai kaqwV kai epegnwsqhn