Can Jin Speak English in the FS?

Is it that far of a reach now that since we learned that Sun and Jin were having the affair and she didn’t have the affair with her English tutor that maybe Jin is the one now who can speak English? Note the fact that it now appears that this comes to light and now back on the island she can understand English but can’t speak it. What if Jin now speaks English and was aware of everything the Keamy said while tying him up. I can only assume that he will get to the hospital where Jack works and maybe run into both Jack and Sayid. With what Keamy may have said about “the island” in my opinion what if Jin starts to remember and starts getting clued in? Since Jin is the only one named Kwon in the FS I believe he is the candidate and not Sun.