PIE syntax

Piotr:
Thanks a lot for your very illustrative answer. The reason of my interest
for Nostratic is curio coming from looking some website intended to show the
reconstruction of the human protolanguage!

Today's matter is PIE syntaz. Little is said about that. Do you have some
material on that or even weblinks or whatever? I would like to know: how did
the IEs develope this matter on each branch? Besides,
were there common (reconstructed) interjections in PIE?
How did they say YES or NO?

PD. Piotr: excuse my inquisitiveness. Remember I am linking a group of IE
amateurs. I am mechanical engineer; my study group have accountants,
economists, other engineers and even musicians and theatre people. We are
not linguists. Sorry.

Manuel
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