All of my efforts proved pointless.
Even when they tried to help him medically, the exercise proved pointless.
Furious, but knowing that further conversation with Heimat or the treacherous Mork would prove pointless, Feric stalked down to the last official.
You're saying that if I trust in the natural order of things, then sooner or later my efforts will prove pointless and I'll be out of a job.
Chakotay tried to struggle, but that effort quickly proved pointless.
Although the Police response to this highway terrorism is rapid and extensive, investigations often prove pointless, as generally the spectators and drivers have left or are dispersing into regular traffic when they Police arrive.
These commanders had been made aware that Generals Robert E. Lee and Joseph E. Johnston had already capitulated and that continued hostilities would prove pointless.
Like taking on a new student when everything might prove futile and pointless within a few short months, anyway.
I hope it will prevent the election of Mr Le Pen and that this exercise will thus prove pointless.
In short, it all seems to me to be a theoretical exercise which may well often prove pointless.