You actually can! Open a new project in Premiere Pro, then press Ctrl + F12 (if you're in a laptop you'll also need to hold Fn) then a Console window will pop up. Go to the 3 horizontal lines on the top left corner of the window and make sure the "Debug Database View" option is selected. Then scroll down until you find "ApplicationLanguage" and when you find it, on the right you must type whatever language you want. For example, english you would type "en_EN", spanish would be "es_ES". Just google the name of your language pack and write that. Then just restart Premiere and you're good to go!