|Participles may correspond to the active voice (active participles), where the modified noun is taken to represent the agent of the action denoted by the verb; or to the passive voice (passive participles), where the modified noun represents the patient (undergoer) of that action.|
|1) present participle|
|The present participle is often used when we want to express an active action.|
We generally add -ing to the infinitive of the verb.
|Use of the present participle|
|He is reading a book.|
|Reading books is fun.|
|Look at the reading boy.|
|2-1) past participle|
|Participles are words formed from verbs which can be used as adjectives.|
Past participle is an action-based description, where the action is completed action.
|Use of the past participle|
|He has forgotten the pencil.|
He had forgotten the pencil.
|A house is built.|
A house was built.
|Look at the washed car.|
The car washed yesterday is blue.
He had his car washed.
|3. Interested and Interesting|
|showing curiosity or concern about something or someone; having a feeling of interest.|
|I am interested in sports. (not...I'm interesting in sports.)|
|She is interested in biology.|
|arousing curiosity or interest; holding or catching the attention.|
"an interesting debate"
|It is such an interesting topic to talk about. (not... an interested topic...)|
|Swimming is an interesting sports.|
|He is an interesting person.|
|4. exceptions: a fallen leaf, an escaped prisoner etc|
|A few past participles can be used as adjective with active meanings, especially before nouns|
|5. Active past participle: advanced points|
|some past participles can be used with active meanings, but only with adverb|
|My children are all grown-up now.|
|She is a retired person.|
|My homework will be finished in a few minutes.|