Laugh is a regular verb so the past and past participle are laughed
The past participle is laughed.
Laughed is the past participle (as well as the simple past tense).
The simple past and past participle is laughed.
The present participle is laughing. The past tense is laughed. The past participle is 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".
laughed
Laughed
The past participle of hear is heard. Past participles are words formed from verbs which can be used as adjectives.
infinitive: hurt past: hurt past participle: hurt
The word "angry" is an adjective. The only words with past participles are verbs. Therefore, angry doesn't have a past participle.
The present participle of "laugh" is "laughing."
The past tense of "sew" is "sewed" and the past participle is "sewn" or "sewed."