In the sentence "The retired couple set off for Phoenix in their motor home," there isn't a participial phrase present. A participial phrase typically includes a participle and any modifiers or objects, and it often describes a noun. In this case, "retired" is a participle describing "couple," but it isn't part of a participial phrase.
retired
Retired
The participle in the sentence is "retired", which is used to describe the couple.
exhausting
couple retired was filmed on the same island as couples retreat. which was not that great of a movie
i hate you
50,000
how much income can you earn as a retired couple before filing a tax return
a couple in Phionex and a couple in Glendale
The registry is open to both same-sex and opposite sex couples. The couple must reside in Phoenix.
The Happy Couple - 2003 was released on: USA: 11 April 2003 (Phoenix Film Festival)
I could use a couple of dollars; sure.