Sentence examples for had been questioning its from inspiring English sources

Experts had been questioning its authorship for years.

"Art-making has been questioning its relationship to the commercial market for 60 years," he said, "much of this questioning work has been what has defined contemporary art.

But biologists have been questioning it for a long time.

Anyone would think people had been questioning his appetite for the game.

At the press conference he said he had been questioning his motivation for longer and, again, that is true.

But Mr. Glass had been questioning the distributor model for some time.

A third witness told him that state investigators had been questioning residents in the area.

Prosecutors had been questioning Mr. Richard in the hospital, after he began feeling exhausted Monday following a long interrogation.

At the time, Mr. Trump had been questioning whether Mr. Obama was born in the United States (indeed he was, in Hawaii).

Immigration advocates, lawyers and civil rights groups said they had been questioning the treatment of the detainees for several years.

Karen Patton Seymour, sitting at the prosecutors table, urged her colleague, Michael Schachter, who had been questioning Ms. Armstrong, to take a recess.