The past participle (and simple past) is developed.
Developed is the past participle of develop.
The past participle of the verb "study" is "studied."
The past participle of the verb "be" is "been."
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 occur is occurred!
Developed is the past participle of develop.
The past participle of the verb "study" is "studied."
The past participle of the verb "be" is "been."
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 occur is occurred!
Like is a regular verb so the past participle is verb + ed, = liked
By is not a verb and does not have participle forms; however, buy is a verb. The past participle is bought.
It is the past participle of cleave.
The past participle of the verb die is died.
The past participle of the verb to do is "done."
Invented is the past participle of the verb invent. verb /past /past participle = invent /invented /invented
There is no past participle. The idiomatic construction "have to" means "must" and is used as an auxiliary verb. (The verb to have has the past tense had and the past participle had.)