1. Basic Usage
* The book was written by a famous author. (The past participle "written" acts as the main verb in the passive voice.)
* The broken window needs to be repaired. (The past participle "broken" acts as an adjective modifying "window".)
* I have finished my homework. (The past participle "finished" is part of the present perfect tense.)
2. Using Past Participles as Adjectives
* The stolen car was recovered by police. (The past participle "stolen" modifies "car".)
* We had a delicious dinner at the newly opened restaurant. (The past participle "opened" modifies "restaurant.")
* The frightened child hid under the table. (The past participle "frightened" modifies "child.")
3. Using Past Participles in Perfect Tenses
* She has eaten all the cookies. (The past participle "eaten" is part of the present perfect tense.)
* We had been working on the project for weeks before it was completed. (The past participle "working" is part of the past perfect continuous tense.)
* I will have finished the report by tomorrow morning. (The past participle "finished" is part of the future perfect tense.)
4. Using Past Participles in Passive Voice
* The game was played by two teams. (The past participle "played" is the main verb in the passive voice.)
* The car was driven by a skilled driver. (The past participle "driven" is the main verb in the passive voice.)
* The letter was delivered this morning. (The past participle "delivered" is the main verb in the passive voice.)
5. Using Past Participles in Phrasal Verbs
* The job was taken on by a new employee. (The past participle "taken" is part of the phrasal verb "taken on".)
* The old house has been torn down. (The past participle "torn" is part of the phrasal verb "torn down".)
* The project was put off until next week. (The past participle "put" is part of the phrasal verb "put off".)
Remember, past participles can function as verbs, adjectives, or part of other verb tenses. It's important to understand their different roles in a sentence to use them correctly.