patois vs can-do

patois is a noun but can-do is not a noun.

Word	Noun	Adjective	Verb	Adverb
patois	Yes	No	No	No
can-do	No	Yes	No	No

patois (noun)	can-do (noun)
a regional dialect of a language (especially French); usually considered substandard
a characteristic language of a particular group (as among thieves)

patois (adjective)	can-do (adjective)
	marked by a willingness to tackle a job and get it done