drag down vs bear down on

drag down and bear down on both are verbs.

Word	Noun	Adjective	Verb	Adverb
drag down	No	No	Yes	No
bear down on	No	No	Yes	No

As verbs, drag down and bear down on are synonyms defined as:

Other synonyms of drag down include bear down, press down on, weigh down.

drag down (verb)	bear down on (verb)
exert a force with a heavy weight	exert a force with a heavy weight
	sail towards another vessel, of a ship