reduced adjective clause

B1+ Reduced Adjective Clauses
We reduce sentences when you have the same subject in the main clause and the adjective clause.
Adjective clauses contain relative pronouns like who, which, or that. The reduced adjective clause
becomes an adjective phrase, which does not have a subject. An adjective phrase does not have a
subject and a verb. Instead, it has a present participle (base verb + ing) for the active voice or a past
participle for the passive voice.
(Mt. SAC Writing Center)