efforts in vain

to endeavor, to make an effort

an effort, an endeavor

entirely; all

everything, all

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

as hard as one can; to the best of one's ability

(colloquial) current boyfriend