Both present participles and past participles may be used as adjectives. The present participle always ends in -ing. Past participles usually end in -ed, -d, -en, -n, or -t.
PRESENT PARTICIPLES
confusing, speaking, boring
PAST PARTICIPLES
confused, spoken, bored
Like all other adjectives, participles can come before nouns; they also can follow linking verbs, in which case they describe the subject of the sentence.
Choosing present vs. past participle
Use a present participle to describe a person or thing causing or stimulating an experience.
The lecture caused boredom.
Use a past participle to describe a person or thing undergoing an experience.
The audience experienced boredom.
Participles that describe emotions or mental states often cause the most confusion.
annoying/annoyed |
exhausting/exhausted |
boring/bored |
fascinating/fascinated |
confusing/confused |
frightening/frightened |
depressing/depressed |
satisfying/satisfied |
exciting/excited |
surprising/surprised |
Exhausting describes the hike, which caused exhaustion.
Exhausted describes the hikers, who experienced exhaustion.
Exercise: Present vs. past participles 1
Exercise: Present vs. past participles 2
Related topic:
Linking verbs and subject complements
present participle A verb form ending in -ing and functioning as part of main verbs or as an adjective.
past participle A verb form usually ending in -d, -ed, -n, -en, or -t and functioning as part of a main verb or as an adjective: walked, broken, seen.
linking verb A verb that links a subject to a subject complement, a word or word group that renames or describes the subject. Linking verbs are be, am, is, are, was, were, being, been; also appear, become, feel, grow, look, make, seem, smell, sound, taste.
present participle A verb form ending in -ing and functioning as part of main verbs or as an adjective.
past participle A verb form usually ending in -d, -ed, -n, -en, or -t and functioning as part of a main verb or as an adjective: walked, broken, seen.