run on vs keep going

run on and keep going both are verbs.

Word	Noun	Adjective	Verb	Adverb
run on	No	No	Yes	No
keep going	No	No	Yes	No

As verbs, run on and keep going are synonyms defined as:

run on (verb)	keep going (verb)
talk or narrate at length	be a regular customer or client of
continue uninterrupted	suffice for a period between two points
	continue uninterrupted