go after vs chase after

go after and chase after both are verbs.

Word	Noun	Adjective	Verb	Adverb
go after	No	No	Yes	No
chase after	No	No	Yes	No

As verbs, go after and chase after are synonyms defined as:

Other synonyms of go after include chase, dog, give chase, tag, tail, track, trail.

go after (verb)	chase after (verb)
go in search of or hunt for	go after with the intent to catch
go after with the intent to catch	pursue someone sexually or romantically