Parallelism in English Grammar: Rules and Examples of Parallel Sentences

What Is Parallelism in English Grammar?

In English grammar, Parallelism—also called parallel structure or parallel construction—is the balance of two or more similar words, phrases, or clauses. When used correctly, parallel sentences create a smooth rhythm and flow, making writing clearer and more effective. Writers also use parallelism as a literary device to capture attention and give meaning to their work.

Why Is Parallelism Important?

Maintaining parallel structure is essential for correct grammar and good writing style. Without it, sentences can sound awkward, unbalanced, or even confusing. By mastering parallelism in English grammar, you can make your sentences more polished and professional.

Rules of Parallelism with Examples

1. Balance Similar Parts of Speech
   Match nouns with nouns, infinitives with infinitives, clauses with clauses, and so on.

❌ My mother likes cooking and to read.
✔ My mother likes cooking and reading.

2. Use Parallelism with Coordinating Conjunctions
   When elements are joined by words like and, but, or, they should follow the same form.

❌ He wanted to go hiking and he enjoys swimming.
✔ He wanted to go hiking and swimming.

3. Apply Parallelism in Lists or Series
   Items in a list should follow the same grammatical pattern.

❌ This task can be done individually, in pairs, or can be done in groups of four.
✔ This task can be done individually, in pairs, or in groups of four.

4. Use Parallelism in Comparisons
   Comparisons must keep the same grammatical form to be clear.

❌ She is more interested in watching TV than to read a book.
✔ She is more interested in watching TV than reading a book.

5. Apply Parallelism with Linking Verbs
   When using linking verbs or forms of “to be,” keep the structure consistent.

❌ To learn is understanding the world.
✔ To learn is to understand the world.

6. Use Parallelism with Linking Words
   Words such as not only… but also should connect elements of the same kind.

❌ The teacher not only wants his students to keep quiet but also to do the task.
✔ The teacher wants his students not only to keep quiet but also to do the task.

Mastering Parallelism in Writing

Using parallel construction helps writers sound confident, organized, and clear. Whether in essays, speeches, or everyday communication, parallel sentences improve readability and leave a stronger impression. By practicing these rules, you can master parallelism in English grammar and make your writing shine.