thanks a lot for to The Parser in advance..

:up:

i dig it for a little bit...
but, i still have two questions....
- in what situation can we use such a combination of conditional...??
- what's its real meaning???
***** NOT A TEACHER *****
Hello again.
(1) I am sorry, but I do not understand your question.
(2) Do you mean to explain in more detail your example sentence?
(3) If that is the case, then I will be happy to try:
(a) You and Tom, a friend, are talking.
(b) Tom asks you: Hey, yesterday when we saw George across the
street, I waved to him, but you did not wave to him. Why?
(c) You reply: If I knew him, I would have waved.
(i) When you say "If I knew" (2nd conditional), that means you DO NOT
KNOW him. You have never met him.
(a) If I knew French (I don't), I would teach it.
(b) If I had ten million dollars (I don't), I would give you $1,000.
(c) If Joe had a nice car (he doesn't), he could drive to the mountains.
It's important to remember that "knew" and "had"
are NOT being used as past forms here. They are referring to something
now that is not true. If I knew = I do not know.
(4) So in your example, you are telling your friend that the only reason
that you did not wave to George yesterday was that you do not know
George and that you do not like to wave to strangers. When you say, "If
I knew George, I would have waved to him," you want to say something
like:
The only reason that I did not wave to George is that I do not know him.
(5) If you have more questions, just keep posting them. Sooner or
later, you will get an answer from someone who can help you understand.
If I could shake your hands now (Of course, I cannot. We are in two
different countries), I would wish you the best of luck.