Thank you so much! I really appreciate it, does a diploma of language add another year of subjects to me degree? or do i do it concurrently with my degree? or is it both?
Not entirely sure, so I'd ask Monash to double check this, but I think it's both, depending on how you want to do it. I've heard of people tacking a Diploma of Languages on to the end of their degree and, to a lesser extent, doing it concurrently with their degree.
There's also the possibility of 'overloading' (if you're capable), which means to study more than the standard 4 subject full-time load, that would allow you to get both the BSci/Global Studies and Diploma of Languages done in 4 years (compared to 5 years in total), however, this is generally considered to be difficult and often not recommended.
Here's the Diploma of Languages handbook entry for your perusal and, as stated earlier, please check the information I've given with Monash themselves.