"Dicho," it's irregular.
The past participle of the Spanish verb "ser" is "sido."
Decir translates to "to tell" or "to say."
The past participle of the verb "study" is "studied."
The past participle of the verb "be" is "been."
The past participle of the verb "develop" is "developed."
It is the past participle of the verb "empezar", and means "began".
The past participle of the verb to buy (comprar) is: comprado.
visit is a regular verb so the past and the past participle are both verb + ed ievisitedvisited is the past participle of the verb visit.
The past participle of the verb "occur" is "occurred."
The past participle of the verb "like" is "liked".
By is not a verb and does not have participle forms; however, buy is a verb. The past participle is bought.
The past participle of the verb die is died.