Lost English language!

After installing the Greek language to my system settings all windows menus etc became greek! I can;t seem to add the English language again to restore the english menus! Any ideas?

Try YaST>System>Language

I’ve set the primary language to English US and the secondary to Greek. Really can’t get it!! I added the Greek language to the System Settings application and after it was added everything changed to Greek! I added the English UK language, and replaced Greek just for testing, my desktop items changed to English but the menus remained Greek! Really messed up! Anyway to restore the settings?