Conjugation of do one's damnedest [v.]
-do one's damnedest
Ido my damnedest
youdo your damnedest
hedoes his damnedest
wedo our damnedest
youdo your damnedest
theydo their damnedest
Idid my damnedest
youdid your damnedest
hedid his damnedest
wedid our damnedest
youdid your damnedest
theydid their damnedest
Iwilldo my damnedest
youwilldo your damnedest
hewilldo his damnedest
wewilldo our damnedest
youwilldo your damnedest
theywilldo their damnedest
Ihavedone my damnedest
youhavedone your damnedest
hehasdone his damnedest
wehavedone our damnedest
youhavedone your damnedest
theyhavedone their damnedest
-doing one's damnedest
-done one's damnedest