- How does the phrase To finish the novel before midnight function in this sentence?
Answer: As a noun serving as the subject
When you see an infinitive phrase (a phrase beginning with "to" + a verb), remember that it can function in three ways: as a noun, an adjective, or an adverb. To figure out which, ask what job the phrase is doing in the sentence.
Here, the phrase To finish the novel before midnight sits at the very beginning, and the main verb is was. Ask yourself: what was Amir's only goal? The answer is "to finish the novel before midnight." That phrase names the thing being equated with "goal," which means it's acting as the subject of the sentence—a noun function. You can even test this by substituting a simple noun: "Sleep was Amir's only goal." The structure works identically, confirming C.
A is wrong because an adverb modifying was would answer how, when, or where the being occurred—but the phrase isn't describing the verb; it is what the verb links to the subject complement. B is wrong because an adjective modifying goal would come near goal and describe it (e.g., "Amir's only goal to finish the novel..."). In the sentence as written, the phrase is separated from goal and functions as the subject instead. D is wrong because participial phrases begin with a verb form ending in -ing or -ed (like "Finishing the novel"), not with "to" + verb. This phrase is an infinitive, not a participle.
Tip: To test whether an infinitive phrase is a noun, try replacing it with "it" or "something." If the sentence still makes grammatical sense, it's functioning as a noun.
- Which choice correctly identifies the types of the two underlined-style phrases exhausted by weeks of research and in a journal?
Answer: The first is a participial (adjectival) phrase; the second is a prepositional phrase functioning adverbially.
When you're asked to identify phrase types, focus on two things: what the phrase looks like (its opening word or structure) and what job it does in the sentence (modifies a noun? a verb? acts as a noun itself?).
Start with exhausted by weeks of research. It begins with a past participle (exhausted) and describes the noun *scientist*—telling you what condition she's in. Any phrase built around a participle that modifies a noun is a participial phrase, which always functions adjectivally.
Now look at in a journal. It starts with the preposition in and ends with the noun journal, making it a prepositional phrase. It modifies the verb published by telling where she published—an adverbial function. That matches B exactly.
Here's why the others fail:
- A wrongly labels the first phrase prepositional. Exhausted is a verb form (participle), not a preposition, so the phrase can't be prepositional.
- C calls the first phrase a gerund. Gerunds are -ing forms acting as nouns (Running is fun). Exhausted is an -ed participle acting as an adjective—not a gerund. It also mislabels in a journal as adjectival, but it modifies the verb, not a noun.
- D calls the first an absolute phrase. Absolutes typically pair a noun with a participle (her research finished, she rested) and modify the whole sentence. And in a journal has no infinitive (to + verb), so it can't be infinitive.
Tip: Match the phrase's first word to its type—preposition → prepositional, to + verb → infinitive, -ing noun → gerund, -ed/-ing modifier → participial.
- How does the phrase Studying late into the night function in the sentence?
Answer: As a gerund phrase functioning as the subject
When you see an -ing word or phrase at the start of a sentence, don't assume it's automatically a participle. You need to ask: what job is this phrase doing in the sentence? If it's naming an action that functions as a noun, it's a gerund. If it's describing a noun, it's a participle.
Here, Studying late into the night is the thing being talked about — it's what "can improve short-term recall but harm long-term retention." In other words, the phrase is performing the role of the subject of the verb can improve. Since a gerund is an -ing verb form acting as a noun, and this phrase acts as the subject noun, it's a gerund phrase functioning as the subject. That matches B.
A is wrong because a participial phrase modifies a noun (like "Studying late, she felt exhausted," where studying late describes she). Here, there's no noun being described — the phrase is the subject, not a modifier of one. C is wrong because an infinitive uses to + base verb (to study), not the -ing form, and the phrase isn't receiving the action of a verb anyway. D is wrong because a prepositional phrase begins with a preposition (in, on, at, etc.); studying is a verb form, not a preposition, and the phrase isn't modifying recall.
Tip: To test whether an -ing phrase is a gerund, try replacing it with the pronoun it or this. If the sentence still works ("*It* can improve short-term recall..."), you've got a gerund.
- Which statement most accurately describes Determined to master the sonata?
Answer: It is a participial phrase functioning as an adjective modifying Leo.
When you see a descriptive phrase set off by a comma at the start of a sentence, ask yourself two questions: what part of speech begins the phrase, and what word in the main clause does it describe? These questions usually unlock the phrase's identity.
Here, the phrase begins with Determined, which is the past participle of the verb determine. Participles are verb forms that act as adjectives. The phrase Determined to master the sonata describes Leo—it tells you what quality Leo possessed as he practiced. That makes it a participial phrase functioning adjectivally, modifying the subject Leo. This is a classic construction: a participial phrase at the start of a sentence, followed by a comma, modifying the subject that comes next. Answer D captures this exactly.
Now the distractors: A calls it an infinitive phrase, but infinitives take the form to + verb (like to master, which is actually nested inside the larger phrase). The whole phrase doesn't begin with an infinitive, and it isn't the subject—*Leo* is. B labels it a gerund phrase, but gerunds are -ing verb forms used as nouns; Determined is an -ed participle, not a gerund, and there's no direct object here since practiced is used intransitively. C calls it a prepositional phrase, but prepositional phrases begin with prepositions (in, on, by, etc.), not participles.
Tip: When a sentence opens with an -ed or -ing word followed by a comma, check that it logically describes the subject that follows—otherwise you have a dangling modifier.
- What is the grammatical function of the phrase Racing across the finish line in the sentence above?
Answer: It is a participial phrase modifying marathoner.
When you see an "-ing" phrase at the start of a sentence followed by a comma, ask yourself one key question: is the phrase acting as a noun (a gerund) or as an adjective (a participle)? The test is simple — check what word the phrase describes and how it connects to the sentence.
Here, Racing across the finish line describes who was racing: the marathoner. Since the phrase modifies a noun, it's functioning as an adjective, which makes it a participial phrase. Participial phrases at the beginning of a sentence are typically set off by a comma and must clearly modify the subject that immediately follows — exactly what happens here.
Choice A is wrong because a gerund phrase acts as a noun (a subject, object, or complement). The actual subject of this sentence is marathoner, not the "-ing" phrase, so it can't be a gerund functioning as the subject. Choice C is wrong because prepositional phrases begin with a preposition (like in, on, across). While across the finish line is a prepositional phrase nested inside, the entire phrase begins with the participle Racing. Choice D is wrong because infinitive phrases begin with "to + verb" (e.g., to race). There's no infinitive here at all.
A useful trick: if an "-ing" phrase can be replaced with an adjective clause like "who was racing across the finish line," it's a participial phrase. If it can be replaced with a noun like "it" or "something," it's a gerund. This substitution test will save you on nearly every verbal-phrase question.
- Which revision best combines the sentences using a participial phrase?
Answer: Worn out by the steep trail, the hikers set up camp beside the river.
When a question asks you to combine sentences using a participial phrase, remember that a participial phrase begins with a participle—usually an -ing (present) or -ed (past) verb form—and acts as an adjective modifying a noun. The goal is to compress one sentence into a descriptive phrase attached to the other.
Look at the first sentence: "The hikers were worn out by the steep trail." The past participle here is worn out. You can lift that participle and its modifiers to create the phrase "Worn out by the steep trail," which then describes the hikers in the main clause. That's exactly what D does: "Worn out by the steep trail, the hikers set up camp beside the river." It's concise, grammatically correct, and the participial phrase sits right next to the noun it modifies.
A uses a relative clause ("who were worn out..."), not a participial phrase—it still contains a subject and verb. B uses a compound sentence joined by the coordinating conjunction so; there's no participial phrase at all. C creates a subordinate clause starting with because, which is an adverb clause, not a participial phrase.
Strategy tip: To spot a true participial phrase, check that the phrase starts with an -ing or -ed/-en verb form and has no separate subject. If you see who, which, because, or so, you're looking at a clause, not a phrase—and the question is asking specifically for a phrase.
- Which phrase in the sentence functions as the direct object of wants?
Answer: to expand the recycling program
When you're identifying a direct object, ask yourself: "The subject [verb] what?" The direct object is whatever receives the action of the verb. Importantly, a direct object doesn't have to be a single noun—it can be an entire phrase, including an infinitive phrase (a phrase starting with to + verb).
Here, the subject is the committee, and the verb is wants. Ask: "The committee wants what?" The answer isn't just "the recycling program"—the committee wants to expand the recycling program. That entire infinitive phrase is what's being wanted, making D the direct object.
Choice A, the recycling program, is the direct object of the infinitive to expand, not of wants. It's nested inside the larger phrase but doesn't answer "wants what?" on its own. Choice B adds a prepositional modifier to A, but it still only covers part of what wants takes as its object—it leaves out to expand, which is essential. Choice C, across all campus buildings, is a prepositional phrase acting as an adverb modifying expand; it tells where, not what.
A useful strategy: when a verb like wants, hopes, needs, plans, or decides is followed by to + verb, the entire infinitive phrase typically serves as the direct object. Don't be tempted to grab just the noun closest to the main verb—grammar questions often test whether you can recognize that a whole phrase, not just a word, fills a grammatical role.
- Which prepositional phrase in the sentence functions as an adjective modifying novel?
Answer: on the top shelf
When a prepositional phrase acts as an adjective, it modifies a noun or pronoun and answers questions like Which one? or What kind? When it acts as an adverb, it modifies a verb, adjective, or another adverb, often answering Where?, When?, How?, or Why? To identify the function, find the phrase, then ask what word it describes.
In this sentence, on the top shelf tells you which novel is being discussed — the one located on the top shelf, not some other novel. Since it modifies the noun novel, it's functioning adjectivally, making C correct.
A) to the mystery modifies the verb holds (it tells where or to what the answer belongs — actually, it modifies answer, a different noun, not novel). Either way, it doesn't describe novel.
B) of the mystery isn't actually in the sentence — this is a distractor designed to tempt you if you're skimming. Even if it were present, it would modify answer, not novel.
D) to the top isn't a real prepositional phrase in this sentence. Top is functioning as an adjective inside the phrase on the top shelf, not as the object of to. This choice tries to trick you by pulling words out of context.
Tip: To test whether a prepositional phrase is adjectival, place it right after the noun it might modify and ask "Which ___?" If the answer makes sense, it's adjectival.
- What is the function of the infinitive phrase to share flashlights and stories?
Answer: It functions as an adverb modifying gathered by expressing purpose.
Infinitive phrases (to + verb + any objects/modifiers) are versatile — they can act as nouns, adjectives, or adverbs. To identify the function, ask what job the phrase is doing in the sentence: Is it naming a thing (noun)? Describing a noun (adjective)? Or telling how, when, where, or why something happens (adverb)?
Here, the neighbors "gathered on the porch to share flashlights and stories." Ask why did they gather? To share flashlights and stories. Because the phrase answers why about the verb gathered, it's functioning adverbially to express purpose — you could even rewrite it as "in order to share flashlights and stories" without changing the meaning. That confirms C.
A is wrong because gathered is an intransitive verb here — the neighbors didn't gather something; they came together. There's no direct object to receive the action. A quick test: "The neighbors gathered what?" doesn't work.
B is wrong because the phrase doesn't describe what kind of neighbors they are; it describes why they gathered. An adjective infinitive would sit right next to the noun it modifies, as in "neighbors to trust."
D is wrong because an appositive renames a noun with an equivalent noun phrase (e.g., "the porch, a wide wooden deck"). "To share flashlights and stories" is not another name for the porch.
Tip: When an infinitive phrase follows an action verb and you can insert "in order to" before it, it's almost always an adverb of purpose. This is the most common function of infinitives on grammar exams.
- Which of the three prepositional phrases in this sentence functions adjectivally rather than adverbially?
Answer: from Detroit
When you're deciding whether a prepositional phrase is acting as an adjective or an adverb, ask a simple question: what word does the phrase modify? If it modifies a noun or pronoun, it's adjectival. If it modifies a verb, adjective, or adverb, it's adverbial.
Let's test each phrase against the sentence The award was presented by the mayor to the young inventor from Detroit.
From Detroit (C) modifies the noun inventor — it tells you which inventor. Since it's describing a noun, it functions adjectivally. That makes C correct.
Now the distractors: By the mayor (A) modifies the verb was presented — it answers by whom the action was done (the agent in a passive-voice sentence). That's adverbial, not adjectival. To the young inventor (B) also modifies was presented, telling you to whom the award was given — again, modifying a verb, so it's adverbial. Because C genuinely functions adjectivally, D ("all three adverbial") can't be right.
A helpful test: try moving the phrase or rephrasing it as an adjective clause. From Detroit → who is from Detroit (describes the inventor ✓). By the mayor → *\*who is by the mayor*? That doesn't describe the award; it explains how the presenting happened.
Study tip: Prepositional phrases that sit right after a noun and answer "which one?" or "what kind?" are usually adjectival. Phrases that answer "how?" "when?" "where?" or "by whom?" about the verb are adverbial.
- The sentence contains a misplaced modifier. Which revision correctly attaches the participial phrase to the noun it should modify?
Answer: Walking through the museum, the tourists were amazed by the ancient sculptures.
A participial phrase at the beginning of a sentence (like "Walking through the museum") acts as an adjective — it must modify the noun that comes immediately after the comma. Whenever you see a sentence that opens with an "-ing" or "-ed" phrase followed by a comma, ask yourself: Who or what is actually doing this action? If the noun right after the comma can't logically perform it, you have a misplaced (or dangling) modifier.
In the original sentence, "Walking through the museum" is placed next to "the ancient sculptures" — but sculptures can't walk. The tourists are the ones walking. Choice A fixes this by placing "the tourists" directly after the participial phrase, so the modifier now attaches to the correct noun.
Choice B keeps the phrase next to "sculptures," which still makes it sound like the sculptures are strolling through the museum — the same error, just rearranged. Choice C turns the participial phrase into the subject ("Walking… amazed the tourists"), which awkwardly makes the act of walking the thing doing the amazing, and it buries the sculptures in a prepositional phrase. Choice D isn't even a complete sentence — it's a noun phrase with no main verb, and it still leaves "walking through the museum" ambiguously modifying either the tourists or the sculptures.
Tip: When you spot an introductory "-ing" phrase, immediately check the word right after the comma. If that noun can't logically perform the action, the sentence needs to be rewritten — usually by changing the subject.
- What kind of phrase is Her hands trembling with nerves?
Answer: An absolute phrase modifying the entire main clause
When you see a descriptive phrase attached to a main clause, ask two questions: Does it contain a noun plus a participle? and Does it modify one specific word, or does it add context to the whole sentence? That distinction is the key to spotting an absolute phrase.
Look at Her hands trembling with nerves. It has its own noun (hands) paired with a participle (trembling), but no finite verb — so it isn't a clause. And crucially, it doesn't modify just Maya or just walked; it paints a background circumstance for the entire main clause Maya walked to the podium. That's exactly what an absolute phrase does, making A correct.
B is tempting because trembling is a participle, but a true participial phrase modifying Maya would omit the noun and attach directly to her — e.g., Trembling with nerves, Maya walked to the podium. The presence of Her hands as its own subject rules this out.
C is wrong because the subject of walked is clearly Maya, not Her hands. If Her hands were the subject, the sentence would read Her hands trembled..., and there'd be no separate main clause.
D fails because there's no subordinating conjunction (because, while, when) and no finite verb — both required for an adverbial clause. Trembling is a participle, not a conjugated verb.
Tip: The signature of an absolute phrase is noun + participle with no finite verb, set off by a comma, adding context to the whole sentence. Memorize that formula — it appears often on grammar sections.
