ACT English: Fix Sentence Fragments in 15 Seconds Flat

A fragment is a string of words that lacks a complete subject-verb pair. "Running down the hall" is a fragment (no main verb). "The student who was running" is a fragment (no main verb). A complete sentence has both subject and verb: "The student ran down the hall." When you see a sentence in an ACT English passage, ask yourself: Can I find a clear subject and verb? If no, it is a fragment and needs fixing. Students who develop this subject-verb check habit catch fragments instantly, while students who read for meaning alone miss them, costing 1-2 points per test.

Example fragment: "After the experiment concluded and the data were analyzed." What is the subject? "experiment" or "data"? What is the verb? There is no main verb—only subordinate clauses. Fix: "After the experiment concluded and the data were analyzed, the team published their findings." Now there is a main clause with subject (team) and verb (published).

Pattern 1: Subordinate clause standing alone. "Although the weather was cold." Fix: Add an independent clause. "Although the weather was cold, the students played outside." Pattern 2: Gerund phrase without a main verb. "Running a marathon every weekend." Fix: Add a subject and main verb. "Running a marathon every weekend is her goal." Pattern 3: Participial phrase. "Having finished the test early." Fix: Connect to a main clause. "Having finished the test early, Maria left the room." Pattern 4: Appositive phrase only. "A brilliant writer of poetry." Fix: Attach to a noun with a verb. "Maya, a brilliant writer of poetry, won the award." Pattern 5: Prepositional phrase. "In the middle of the night." Fix: Add a subject and verb. "In the middle of the night, the alarm sounded." Learn these five patterns and you will catch 85% of fragments on test day, earning 2-3 quick points.

Create a cheat sheet with the five patterns. Use it during practice tests until they are burned into your memory.

When you read a sentence that seems incomplete, apply this checklist: (1) Find the main subject. (2) Find the main verb. (3) Is there a verb? (4) Can you draw a line from subject to verb? If you answer "no" to 3 or 4, it is a fragment. (5) Look at the answer choices for ways to fix it: add a subject, add a verb, combine with the previous sentence, or remove the subordinate conjunction. This checklist takes 15 seconds per sentence and prevents you from misidentifying complete sentences as fragments or missing real fragments.

Practice this checklist on ten ACT English passages. Mark every sentence you check. By test day, the process will be automatic.

Fragment questions appear in 2-3 per ACT English section. Each correct answer is 1 point. Most students miss at least one because they do not have a systematic way to identify fragments. A student who masters the subject-verb check and learns the five patterns gains 2-3 points per English section just from fragment questions, a gain that raises her composite score.

This week, memorize the five patterns and practice the checklist. By test day, fragments will be your easiest, fastest correct answers on the English section.