quote:
people call these reduced adverb clauses or reduced adjective clauses,
Adjective clause: The man who is talking to John is from Korea.
Adjective phrase: The man talking to John is from Korea.
Adjective clause: The ideas which are presented in this book are good.
Adjective phrase: The ideas presented in this book are good.
Adjective clause: Ann is the woman who is responsible tor the error.
Adjective phrase: Ann is the woman responsible for the error.
Adjective clause: The books that are on that shelf are mine.
Adjective phrase: The books on that shelf are mine.
and more...
Adverb clause: Since Maria came to this country, she has made many friends.
Adverb phrase: Since coming to this country, Maria has made many friends.
Adverb clause: After he (had) finished his homework, Peter went to bed.
Phrase: After finishing his homework, Peter went to bed.
Phrase: After having finished his homework, Peter went to bed.
Phrase: Peter went to bed after finishing his homework.
Adverb clause: Because she needed some money to buy a book, Sue cashed a check.
Phrase: Needing some money to buy a book, Sue cashed a check.
and more...
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All the examples above are from Understanding and Using English Grammar, Third Edition, by Betty Azar. They are from charts in Chapters 13 and 18.
Sometimes there is a difference in naming the kinds of clauses among grammarians. Azar calls the phrases that come from adverb clauses "modifying clauses."
Rachel