drop behind vs get behind

drop behind and get behind both are verbs.

Word	Noun	Adjective	Verb	Adverb
drop behind	No	No	Yes	No
get behind	No	No	Yes	No

As verbs, drop behind and get behind are synonyms defined as:

Other synonyms of drop behind include drag, drop back, hang back, trail.

drop behind (verb)	get behind (verb)
to lag or linger behind	to lag or linger behind