come along vs occur

come along and occur both are verbs.

Word	Noun	Adjective	Verb	Adverb
come along	No	No	Yes	No
occur	No	No	Yes	No

As verbs, occur is a hyponym of come along; that is, occur is a word with a more specific, narrower meaning than come along:

Other hyponyms of come along include gleam, fulminate.

come along (verb)	occur (verb)
come into being or existence, or appear on the scene	come to pass
develop in a positive way	come to one's mind; suggest itself
	to be found to exist