cant vs buy it

cant is a noun but buy it is not a noun.

Word	Noun	Adjective	Verb	Adverb
cant	Yes	No	Yes	No
buy it	No	No	Yes	No

cant (noun)	buy it (noun)
two surfaces meeting at an angle different from 90 degrees
a characteristic language of a particular group (as among thieves)
stock phrases that have become nonsense through endless repetition
insincere talk about religion or morals
a slope in the turn of a road or track; the outside is higher than the inside in order to reduce the effects of centrifugal force

cant (verb)	buy it (verb)
heel over	be killed or die