BOSTON (CBS/AP) – Gov. Deval Patrick says the overwhelming number of people who work in state government are not, in his words, “goofing off,” in spite of any impressions the public might have from an ongoing federal corruption trial.

The governor is scheduled to testify Friday in the trial of former House Speaker Sal DiMasi and two associates.

READ MORE: Tufts Medical Center Converting Its Children's Hospital Into Adult ICU

WBZ-TV’s Jon Keller on what to expect 

“I’ll answer whatever questions they put to me that I can answer,” Patrick told reporters Thursday.

Asked if his testimony will help or hurt DiMasi, Patrick said, “That’s up to the prosecution. My duty is to show up when asked and to tell the truth.”

WBZ NewsRadio 1030’s Lana Jones has reaction on the DiMasi proceedings

READ MORE: Arsenal Reportedly Make 'Strong Bid' For Revolution Goalkeeper Matt Turner

Patrick would not to discuss specifics of the case during his monthly radio appearance Thursday.

But he said it’s unfortunate that allegations made at the trial might confirm some of the worst fears citizens have about government.

Read: Keller @ Large: Why You Should Follow The Trial

He said most people who work on Beacon Hill do their “very best” every day.

DiMasi, Richard McDonough and Richard Vitale are accused of scheming to steer two software contracts to a vendor in exchange for kickbacks.

MORE NEWS: Alvin Gaston Charged In Fitchburg Hit-And-Run That Left Young Mother Seriously Hurt

(TM and © Copyright 2011 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2011 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)