there are many ways to say ' don't give up '
if you are saying to someone , its ? ? pogi hajimara
if you are saying to your self , its ? ? pogi haji aneul geoya
hope this helps !
a simple way to do so is just "[insert name her] fighting!" because that means that you're determined to do something.
a simple "Fighting!;Hwaiting!" can also mean "don't give up"
? ? or pogihaji mal-ayo
Check the translator page I provided on the source
Hope this help or as in Korean ? ? (huimang-i doum-i).