"Focused on helping his neighbors" is a participial phrase. A phrase is made up of a group of words, without a subject and a verb. It functions as a single part of speech. A phrase consists of a participle and includes modifiers and complements.
The participial phrase is "focused on helping his neighbors."
A participle phrase will begin with a present or past participle. If the participle is present, it will dependably end in ing. Likewise, a regular past participle will end in a consistent ed.
All phrases require two or more words, so that a participle phrase will often include objects and/or modifiers that complete the thought.
Participle phrases always function as adjectives, adding description to the sentence
