ACT English: Maintain Consistent Verb Tense Across Sentences

Rule: If a passage begins in past tense ("The scientist discovered..."), maintain past tense throughout unless a specific reason (like a universal truth or a shift to a new timeline) requires a change. Tense shifts must match the narrative logic. If you see a sentence that suddenly switches from past to present without explanation, the present-tense verb is usually wrong. Flag every verb in a passage and mark its tense before answering—you will catch 80% of tense-shift errors immediately.

Example: "The team completed their research in 2020. They analyze the data for six months." Error: completed (past) and analyze (present) are inconsistent. The second should be "analyzed" (past) unless a reason exists (like "they analyze it every year" = habitual present, which is fine). Here, no reason justifies the switch, so it's wrong.

Acceptable shifts: (1) From past narrative to present for a universal truth: "She moved to Boston in 1995. Boston is a major city." Allowed. (2) From past to present perfect to show recent impact: "He wrote the book. It has changed everything." Allowed. (3) From past to conditional future: "She studied hard. She will pass." Allowed. Shifts are fine when they serve a narrative purpose, not when they're random errors.

The key: ask yourself why the tense shifted. If there's a logical reason, it's allowed. If it seems random, it's an error. On ACT English, random shifts are almost always wrong, so trust your gut when a tense feels out of place.

Read each passage and mark every verb with its tense. (1) "She walks to school every day. She walked yesterday too." What tense for the first sentence? (Present, because "every day" signals habitual action.) (2) "The law was passed in 2010. It applies to new citizens." Is there a reason for the shift to present? (Yes: the law still applies now, so present is correct.) (3) "They worked all night. They finish at dawn." Correct the error: should be "finished." By the third passage, you'll spot shifts instantly.

After drilling, when you encounter tense questions on the test, your eye will automatically catch the error. That trained instinct is worth 1-2 points per test.

Tense-shift questions appear on most ACT English tests. They're straightforward if you know the rule: maintain tense unless there's a narrative reason to shift. Spotting these errors takes 10 seconds per question and awards you a free point because the answer is always "make the verb match the surrounding tense."

Spend 15 minutes drilling tense consistency and you'll add 1-2 points to your English score. It's that simple.