A verbal may belong to one of three categories. It may be a participle, which is used only as an adjective. It may be a gerund,
which always ends in -ing and functions as a noun. Finally, it may be an infinitive, which is preceded by to and functions as a noun, adjective, or even an adverb. Yet verbals still look very much like verbs. Which one of six types of expository structure does this paragraph illustrate?
a) simple listing
b) chronological order
c) cause/effect
d) spatial order
e) comparison/contrast
f) order of importance
I would say A, simple listing. It's not going in order of time, because they aren't dated in any way. I wouldn't say it was a cause and effect because you are just explaining each verbal form. It doesn't seem to have to be in that particular order, it's just how it's placed. You aren't comparing anything, and you none of them seem to be less important then the other. So I believe the answer would be A.