In the space opera I have been working on, a large part of the story revolves around encountering and deciphering other languages quickly for diplomatic reasons. Rather than create a bunch of fictional mumbo jumbo words, I was thinking about simply using real world languages. The gray subhumans on the edge of the world speak Tagalog. The enemy empire from another star system speaks Spanish. Would there be any problem with readers, do you think, or loss of suspension of disbelief if one were to do this?