The passive form is compound, and may be resolved into an asserting word (some form of the verb be) and an attribute complement (a past participle of a transitive verb).
Notice that ed is added to capture (final e is always dropped when ed is added) to form its past tense and its past participle.
The Past Participle denotes action or being as past or completed at the time indicated by the predicate+.
Here captured is, as you have learned, a participle; and, representing the act as past at the time indicated by closed, it is a past participle.
In the explanation of this verb, grammarians further tell us that a passive verb is formed by adding the verb to be, which is thus made auxiliary, to a past participle; as, Portia was loved.
A man's own is what he has, or possesses by right; the word own being a past participle of the verb to owe, which formerly signified to have or possess.
Formerly, a man's own was what he worked for, own being a past participle of a verb signifying to work.
The passive consists of a form of to be and a past participle: [I am instructed].
The perfect participle is formed by combining having with a past participle; as, having gone.
The imperative passive is a verb-phrase consisting of be and a past participle.
To advance; to cause to go forward; -- used only in past participle.
Here the verbs see and catch do not form their past tense and past participle by adding ed to the present, and so we call them Irregular verbs.
The passive form may be made by filling all the blanks with the past participleof a transitive verb.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "past participle" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.