[SOLVED] problems using the find command

I would like to run the below command:

find /nas/quota/slot_3/home/ -type d -iname '*_renamed_pending_deletion' ! -path /nas/quota/slot_3/home/Archive/* -exec mv {} /nas/quota/slot_3/home/Archive/ \;

ive also tried with double quotes:
find /nas/quota/slot_3/home/ -type d -iname "*_renamed_pending_deletion" ! -path /nas/quota/slot_3/home/Archive/* -exec mv {} /nas/quota/slot_3/home/Archive/ \;

I would expect the outcome to move any folders ending with _renamed_pending_deletion from the home directory to the home/archive driectoty, but i get this error for both the commands above:

Usage: find [-H] [-L] [-P] [path...] [expression]

could anybody help please, im running as su?

thanks