progressive tense vs imperfect

progressive tense and imperfect both are nouns.

Word	Noun	Adjective	Verb	Adverb
progressive tense	Yes	No	No	No
imperfect	Yes	Yes	No	No

As nouns, progressive tense and imperfect are synonyms defined as:

progressive tense and imperfect: a tense of verbs used in describing action that is on-going

Other synonyms of progressive tense include continuous tense, imperfect tense, progressive.

progressive tense (noun)	imperfect (noun)
a tense of verbs used in describing action that is on-going	a tense of verbs used in describing action that is on-going

progressive tense (adjective)	imperfect (adjective)
	not perfect; defective or inadequate
	wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings