dekireba/dekitara


  * When "dekireba" or "dekitara" is placed at the beginning of a sentence, is the subject always "you" as in "if you can/if possible", or can it be "I" as in "if I can/if I have the permission to do"?

  * How can I say in Japanese:

> If I can, I would like to ask you a question




In principle (syntactically), there in no restriction to the subject, but at
the beginning of a sentence, they tend to mean that the subject of the
conditional clause is the second person as you mention. In this context, it is
better to use よろしければ "if it is okay with you", お邪魔でなければ "if it does not bother
you", 問題なければ "if it is not a problem", etc.

