Participial phrase = PP Infinitive Phrase = IP
A PP is a group of words introduced by a present participle (<em>ing form</em> as in <em>feeling tired</em><em>, they went home</em>) or past participle (<em>-ed form</em> in regular verbs or other forms in irregular verbs as in <em>the police have questioned anyone </em><em>found lurking near the house</em>. )
An IP is any group of words introduced by infinitival to as in<em> I want </em><em>to dance.</em>
All relevant parts are found between brackets [ ] and the kind of phrase, PP or IP, will be placed at the end of the sentence.
Julia withdrew money from each paycheck [to renovate her old and dingy bathroom.] IP
[Humming to himself], he appeared in good spirits as he walked to the office. PP
Audience members, [bored by the dull guest speaker], quickly lost their interest in the presentation. PP
[To become an expert archer], Natasha dedicated long days to repetitive target drills. IP
The movie featured an unknown actress [described as a rising star]. PP
[To gain admittance to Yale University] was Nicholas's top priority. IP
Tonight's gala event is an effort [to help raise money for natural-disaster relief.] IP