ACT® · English: Sentence Structure and Formation
Participial Phrase Fragments
A participial phrase fragment looks like a sentence because it has a verb form, but that verb form never gets tensed and the phrase never gets a subject of its own. Fix it by giving it both, or attaching it to a sentence that already has them.
Participles are the -ing and -ed forms of verbs, like hoping, painted, or built. They act as adjectives, describing a noun, not as the main verb running the sentence. That's why 'Hoping for a callback all week' feels sentence-shaped: it has a verb-looking word and a subject-shaped phrase sitting near it. But hoping never gets a tense. There's no way to tell when the hoping happened, because nothing in the phrase anchors it to a time. A real sentence needs a subject plus a verb that is tensed: was hoping, had hoped, hopes. Until that happens, the phrase can only describe something else; it can't report an event on its own.
To repair one, you have two moves. Either attach the phrase to a nearby sentence that already has a subject and a tensed verb, letting it describe the subject there, or give the phrase its own subject and turn the participle into a tensed verb. 'Built in 1890 and restored twice since then' becomes 'The depot was built in 1890 and restored twice since then' (attached) or 'It was built in 1890 and restored twice since then' (new subject plus tensed verb). Both work; the test usually offers one of each as an answer choice.
This sits next to other fragment types in the same unit: a dependent clause starting with because or although has the same problem for a different reason, and a gerund phrase can strand a sentence the same way. All of them get fixed by checking for one thing: is there a subject, and is there a verb that carries tense? If either is missing, no comma, period, or rewording of word order fixes it until you supply that piece.
Key terms
- Participle
- A verb form ending in -ing or -ed that acts as an adjective describing a noun.
- Fragment
- A group of words punctuated as a sentence but missing a subject, a tensed verb, or both.
- Tensed verb
- A verb form that shows when the action happens, such as sprinted or was built, as opposed to sprinting or built alone.
- Subject
- The noun or pronoun that a tensed verb's action or state belongs to.
Watch it explained
- How it worksHow does a participial phrase like 'painted bright red' describe a noun instead of doing a sentence's work?
- Worked exampleWalk me through turning the fragment 'Sprinting toward the finish line, arms pumping' into a full sentence.
- Worked exampleFind the missing piece in 'Built in 1890 and restored twice since then.' and repair it two different ways.
- Common mistakeWhy isn't a comma enough to rescue a participial phrase that is sitting alone as its own sentence?
Check yourself
End of topic.