phranque - 6:50 pm on Mar 22, 2013 (gmt 0)
welcome to WebmasterWorld, jennypretty!
it depends on if and how you can identify and define the pattern of the old urls translating to the new urls.
- all the old urls to be changed start with /dating/
- all the new urls start with /free-dating/
- all the old urls to be changed end with country_name_singles/
- all the new urls end with country_name/
then the answer is yes, you can do this with a single mod_rewrite directive using RewriteRule using capture groups in the pattern and backreferences in the substitution string.
if there's more going on than i assumed above then you will have to provide a comprehensive problem description.