duel
The past participle of the verb "deal" is "dealt."
Formed is the past participle of form.
The past tense of "deal" is "dealt" and the past participle is also "dealt."
The past tense of "deal" is "dealt" and the past participle is also "dealt."
The past participle is laughed.
The past participle is given.
The past participle is worn.
The past participle is relied.
The past form of "am" is "was" and the past participle is "been."
Present participle - developing. Simple past - developed. Past participle - developed.
Sent is the past participle of send.
Introduced is the past participle of introduce.