Laughed
There is no present tense form of the verb "laugh" that includes a past participle of "laugh" except in a strained passive voice construction such as, "His reply was loudly laughed".
Present tense - singing Past participle - sung
The present perfect tense uses the past participle.
Present perfect tense.
No, "have been" is not a present participle. It is the present perfect tense of be. Being is the present participle of be.
Found is the past tense and past participle of the verb find. The present participle is finding. 'Had found' is also the past perfect tense.
No, the past participle is a verb form that is used in the formation of perfect tenses, passive voice, and other constructions, while the present perfect tense is a specific tense that uses the present tense of the auxiliary verb "have" followed by the past participle of the main verb. So the past participle is a verb form, while the present perfect is a tense.
The present perfect tense with past participle for the word "lie" is "have lied."
The present perfect is -- have /has + past participle = has/have slept.
The present perfect tense is "had/has awoken".
"Has chosen" is the present perfect tense.
The present perfect tense of let is: have/has let