Not to weigh in here in Mordochai's place, but (1) be sure you're asking the person about Koine Greek.  Modern Greek isn't necessarily the same in all respects.  (2) Trying to put this nicely, from all of the background I do have with Koine Greek (two semesters at seminary, plus the Synoptics course plus lots of incidental contact in other courses and in conversations with people who know), everything Weboh's said on this thread is, again to put it nicely, wrong, wrong, wrong.

P.

“What I admire is honesty and truth, no matter who, or what, the sources are.”
— Uri Yosef