The word roll is a noun and a verb.
The noun form is the act of rolling. e.g. the roll of a ball.
The verb form is to cause an object to revolve by turning it over repeatedly.
Wilm Roil was born in 1942.
Wilm Roil is 186 cm.
he roiled me
to leave alone
yes, to wok into a paste
part of speech
The part of speech for this particular word is a noun.
adverb
what part of speech is work
what part of speech is beneath
the part of speech sashay is a averb
Did is a verb, and not is an adverb. Didn't is not any part of speech. It's a contraction of did and not.