Since this is Masamune, and you posting in Eng section, I presuming you are talking about Japanese speaking population, since they are the biggest population around
Well firstly, as trolling mentioned, the JP do not want to play with people that cannot communicate with. Go get FFXIVAPP. Put it up on your secondary screen. Also have Google Translate open.
Make sure to inform them that you are using Google Translate and can roughly understand what they are saying. Use Google Translate to say that in Japanese. Be polite.
That helps alot with most average content. Sadly for primal extremes, while that helps, due to nature of fights they want max communications.