I always assumed the scwha\inherent "a" was not pronounced before the infinitive's naa. Therefore, maannaa is pronounced with a geminate(elongated) nn sound instead of maananaa. Likewise, jaananaa is actually pronounced jaannaa. However, recently on a tape I have, I heard someone say "jaananaa" when pronouncing a list of vocabulary words. Is this an acceptable pronunciation in spoken Hindi/Urdu?