Which option best completes a sentence to maintain parallel structure: 'The study aims to analyze, to compare, and to evaluate'?

Which option best completes a sentence to maintain parallel structure: 'The study aims to analyze, to compare, and to evaluate'?

• A. analyze, to compare, and to evaluate
• B. to analyze, to compare, and to evaluate
• C. to analyze, to comparing, and to evaluate
• D. analyzing, to compare, and to evaluate

Answer: (B)

Parallel structure is about keeping the same grammatical form when you list actions after a verb like aims. After “aims to,” the items should all be in the same infinitive form: to analyze, to compare, and to evaluate. That uniform pattern is what makes the sentence clean and easy to follow. Using “to” before each verb keeps the rhythm balanced and clearly indicates that each item is an action the study will undertake. The other forms mix different verb kinds—one item without “to,” or a gerund form like “analyzing” or “to analyzing”—and that breaks the flow, making the sentence awkward and harder to read. So the best choice is the one that repeats the infinitive form for each action.

Parallel structure is about keeping the same grammatical form when you list actions after a verb like aims. After “aims to,” the items should all be in the same infinitive form: to analyze, to compare, and to evaluate. That uniform pattern is what makes the sentence clean and easy to follow.

Using “to” before each verb keeps the rhythm balanced and clearly indicates that each item is an action the study will undertake. The other forms mix different verb kinds—one item without “to,” or a gerund form like “analyzing” or “to analyzing”—and that breaks the flow, making the sentence awkward and harder to read. So the best choice is the one that repeats the infinitive form for each action.