"perform our duties" is correct and usable in written English.
It is often used in the context of responsibility or assignment, such as in the sentence "We must perform our duties conscientiously and to the best of our ability."
Did we perform our duties?
Rather, if we perform our duties of virtue in the right spirit, one part of us, reason, retains control over the other part, passion.
These feelings will make it easier for us to perform our duties and are a sign that we are disposed to do so.
"All Thais should realise this point a lot and behave and perform our duties accordingly, our duty for the sake of the public, for stability, security for our nation of Thailand," the king said.
"It is time for all of us to perform our duties.
When we perform our duties with devotion, then we develop non-attachment in a natural and spontaneous way.
"We tried in good faith to perform our duty to look out for public safety," Officer LaCicero said about ticketing the fire chief.
"We give the government seven days to return peace to the country or we, every member of the P.A.D., will perform our duty under the Constitution," said Chamlong Srimaung, a leader of the yellow shirts, whose formal name is the People's Alliance for Democracy.
That morning we were both performing our duties with sleepy devotion.
"We both performed our duties as senior managers of our respective companies in the courtroom and harbor no resulting ill will".
Others feel that if we've performed our duties in a more or less decent fashion we will continue to muddle on in some manifestation on an altogether different plane.
