Parallel structure in sentences

After mastering the structural knowledge of To Verb, Ving, Bare Verb, your next step is to move on to the new important grammar part - parallel structure in English. This is not only an important grammar part in exams but also a tool to help your sentences and writing become smoother and easier to understand in all future communication or writing situations.

1. Concepts

Parallel structure is a sentence that contains two or more elements or clauses with the same grammatical structure.

For example:

  • My little brother like swimming, running and playing basketball.

2. Characteristics

Like adverbial clauses, you can encounter parallel structures in English everywhere, from tests, everyday communication, to songs and academic texts. When a word chain consists of 2 or more words, phrases or clauses, each component in that word chain has the same grammatical structure, which is a sign of parallel structure in English.

For example:

  • Autumn is famous for turning leaves, cooling temperatures, and darkening nights.

In there turning leaves, cooling temperatures, and darkening nights are all used V-ing + Noun

3. Parallel structure

- Gerund/V-ing

Mary likes hikingswimming, and bicycling.

-  Infinitive

Mary likes to hiketo swim, and to ride a bicycle. or Mary likes to hikeswim, and ridea bicycle.

-  Verb

The teacher said that he was a poor student because he waited until the last minute to study for the exam, completed his lab problems in a careless manner, and lacked motivation.

My teacher said I was a bad student because I waited until the last minute to take tests, did my lab work carelessly, and lacked motivation.

- Adverb

The production manager was asked to write his report quicklyaccurately, and thoroughly.

- Adjective

This book contains poems which are romanticsoothing, and enjoyable

-  Noun/ Noun phrase

On Saturdays they may visit the open-air marketthe docks, or the park

- Clause

The coach told the players that they should get a lot of sleep, that they should not eat too much, and that they should do some warm-up exercises before the game.

Connecting words commonly used in Parallel Structure: and, but, nor, or, yet, not only … but also

  • The photos are black and white.

  • It's an expensive but useful book.

  • You can pay either by cash or by credit card.

  • We have just found out an inexpensive yet effective solution to our problem.

  • She's not only a painter but also a writer.


ATTENTION:

Words/phrases in sentences with Parallel structure in English must be of the same type to express the meaning of listing.

- For single words:

  • Can he read and write?

→ is the same infinitive → Sai: Can he read and wrote?

  • I enjoy running and swimming.

→ is the same verb that adds -ing

  • He editted the letter quickly and correctly.

→ are both adverbs

  • The room is neither spacious nor bright.

→ is also an adjective

- For phrases or clauses:

  • He remembered what he did and why he did it.

→ Sai: He remembered what to do and why he did it.

  • He suggested going out and having dinner.

→ Sai: He suggested going out and have dinner.

  • We were told to either work early or come home late.

  • I save money either to buy a new house or (to) purchase a new car.

  • I save money to buy either a new house or a new car.


Note:

There are many ways to use conjunctions to form parallel structures. However, attention should be paid to the consistency of the joined component. For example:
  • He editted the letter quickly and correctly.
→ "and" connects two adverbs
  • He wrote the letter quickly and editted it correctly.
→ "and" connects two phrases
  • He wrote the letter and the application form quickly.
→ "and" connects two nouns