past progressive tense is a noun meaning "a progressive tense used to describe on-going action in the past". It carries one recorded sense.
a progressive tense used to describe on-going action in the past
“`I had been running' is an example of the past progressive”
Definitions, synonyms and semantic relations for past progressive tense come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.