have to do with vs refer

have to do with and refer both are verbs.

Word	Noun	Adjective	Verb	Adverb
have to do with	No	No	Yes	No
refer	No	No	Yes	No

As verbs, have to do with and refer are synonyms defined as:

Other synonyms of have to do with include bear on, come to, concern, pertain, relate, touch, touch on.

have to do with (verb)	refer (verb)
be relevant to	think of, regard, or classify under a subsuming principle or with a general group or in relation to another
	have as a meaning
	make reference to
	use a name to designate
	seek information from
	send or direct for treatment, information, or a decision
	be relevant to