'past services' is correct and usable in written English.
You can use it to refer to services which have already been completed or received in the past. For example, "The company gave me a discount on my new purchase as a sign of appreciation for my past services."
Redstone said it was for past services, since both Allen and Greenberg had tried over the past several years to bring the two companies together.
She has been a regular with her mother at the past services.
Many also regard free transport and subsidised utilities and medicines as rightful recognition of past services to the state.
Although stripped of dependencies, it was permitted to retain its status as a free city in recognition of past services.
If the entire amount were attributed to past services, then Mr. Romney's use of the S Corporation avoided $58,000 in Medicare taxes.
The higher one looked in society, the more it appeared crisscrossed and interconnected by ties of kinship or of past services exchanged.
That debt is called a "past service" obligation, and in some cases in the nineteen-forties and fifties the past-service obligations facing employers were huge.
And that fight must always move forward regardless of party or seniority or even past service".
Contrary to what her detractors would unfairly insinuate, Judge Sotomayor's past service on our board enhances her superb qualifications.
Just for today, however, respect for years of past service demands that Kauto Star tops the bill in the Guinness Gold Cup.
Because the courts are reserved for veterans, they serve as a recognition of past service and an effective way to reawaken the service members' pride, discipline and courage — critical elements in helping many resolve their problems.
