Perfect Participles (Intermediate)

Intermediate perfect participles add passive forms to the active Having + past participle pattern. Active sentences use "Having completed the course, he got a certificate." Passive sentences use Having been + past participle: "Having been warned about the delay, she made other plans." In both cases, the participle clause shows that the first event was completed before the main action. The difference is whether the subject did the first action or received it.

Read the original sentence carefully before choosing the form. If the subject completed, checked, ate, or submitted something, use active Having + past participle. If the subject was warned, invited, selected, or given something, use passive Having been + past participle. The main clause should keep the same subject and meaning. This route is useful preparation for formal written English because perfect participles let you show order and cause without repeating long after-clauses or because-clauses. Negatives use Not having or Not having been.