From my textbook, I learned that I have to use verbs in ている form or potential form when using ~うちに grammar point. However, I am not sure if I should use potential form or ている form in this example.
'While I can still travel'
Should I use 旅行できるうちに or 旅行しているうちに？Or are they both incorrect?
Any help is very appreciated. Thank you all very much.