Most people, even in Burma, are unaware of these subtleties, as it occurs only in the spoken language and the spelling "မြန်မ" is not mandatory. Thus we find both "Myanma Airways" (correct spelling) and "Myanmar Airways" (incorrect spelling, but used officially and recognised anyway). Some English speakers have even coined the adjective "Myanmarese" or "Myanmese", to follow English rather than Burmese grammatical rules. These adjectives are not recommended as most natives of Myanmar preferred to be called either the old way of "Burmese", "Myanmar", or "Myanma" representing the many diverse races in the country.