P.F. + Ka do^ ka - Whether or not...
Basic Japanese grammar plug and play for "Whether or not...p.f."
In Japan, I always would hear Do^ ka na when I questioned someone about something for which they were uncertain of... Like I might ask, "Do you think the Hanshin Tigers will win? A simple not too complicated question to which may be replied, "I'm not sure really", or "Heck if I know, I wonder who will win too." etc. So that we would have
Hanshin ga katsu to omou? - Do you think Hanshin will win?
Do^ ka na. - "Heck if I know" or "I wonder...who..." or "Ummm, thats a tough one."
So in our Japanese grammar construction for today we have P.F. + ka do^ ka Whether or not A, B. Where A and B could be verbs or adjectives in plain form. It is in plain form because it is actually two questions nested nearby one another. Do^ ka is a question in itself meaning, "How is it?" In Japan you will hear Do^ by itself when someone wants to know the state or condition of somebody or something. If I say do^ with a certain inquisitive inflection you would be saying, "How are you" etc.
P.F. + ka do^ ka - Whether or not
Plain form verbs -
iku ka do^ ka shirimasen - I don't know whether he is coming or not.
Whether or not you know something or do something ka do^ ka is the question doubled Japanese grammar. This Japanese grammar
