My Mac has a "Pinyin - Traditional" keyboard mapping that shows the most frequently used Chinese characters for the sound typed (i.e. "m" or "a") so I can select the Chinese character I want. This works well for very frequently used words.
But oddly enough, even though "ma" (the question particle) is (I think) very often used, it is not in the frequent list of "m".
Is it not so often used as I think? Is there an easy way to type it using the Pinyin-Traditional keyboard mapping?