[K_ENG]

1. Could I use 'leave' in the if clause following 'Would you mind' instead of 'left'? If so, how do the two expressions differ in their meanings?

a)Would you mind if I left right now?
b)Would you mind if I leave right now?

2. I also read in another ENGLISH Forum that the sentence structure of a) could be interpreted in two different ways: first, just to express politeness and it can be replaced by "Do you mind if~" structure. The other view is that it is used as a conditional clause (therefore no real intention to do so), hence there is a semantic difference between c)'Would you mind if I left" and d)"Do you mind if I leave." Is there really such a meaning difference between c and d?

Happy New Year to everyone!