The answer is :-
frustrating / boring / fascinating / amusing
Adjectives with -ed or -ing endings are known as PARTICIPIAL ADJECTIVES, because they have the same endings as verb participles (he was training for the Olympics, he had trained for the Olympics).
We saw in an earlier section that many adjectives can be identified by their endings. Another major subclass of adjectives can also be formally distinguished by endings, this time by -ed or -ing endings.
Points to remember :- A participle is a verbal ending in -ing (present) or -ed, -en, -d, -t, -n, or -ne (past) that functions as an adjective, modifying a noun or pronoun. A participial phrase consists of a participle plus modifier(s), object(s), and/or complement(s).
Latin has only four participles :- the present active, future active, perfect passive and future passive.
Learn more about Participle Adjectives https://brainly.com/question/1566598?
#SPJ9
