Non progressive verbs are not used in continuous, right?
But what about, for example, sentences like:
"Gazing absently over the rooftops, it was a few seconds before Harry realised what he was seeing." (Harry Potter and the Prisoner of Azkaban),
or
"She was looking good" (Rajesh in the "Big bang theory"). Can it be concluded, that non progressive verbs actually can be used in Past Continuous?