All skills English

Learn Index · Grammar and Conventions Grade 6–8

Varying sentence structure

Writers mix short and long sentences, and simple, compound and complex ones, so their writing flows.

Read

Why vary your sentences?

Read this paragraph:

The storm arrived at night. The wind howled. The rain pounded the roof. The power went out. We lit candles. We waited.

Every sentence is simple and starts with the subject. It sounds choppy and robotic. Now read this:

The storm arrived at night. As the wind howled and rain pounded the roof, the power flickered and then went out. We lit candles. And we waited.

The second version uses sentence variety. It flows better, emphasizes important moments and sounds more mature. Varying sentences improves rhythm, clarity and voice.

Four sentence structures

1. Simple sentence

A simple sentence has one independent clause.
The crowd cheered.
The excited crowd in the bleachers cheered loudly for the home team. (still simple: one subject, one verb)

2. Compound sentence

A compound sentence has two or more independent clauses, joined by a comma and a coordinating conjunction (FANBOYS) or by a semicolon.
The crowd cheered, but the referee ignored them.
The crowd cheered; the players celebrated.

3. Complex sentence

One independent clause and at least one dependent clause.
When the final whistle blew, the crowd cheered.
The crowd cheered because the home team had won.

4. Compound-complex sentence

At least two independent clauses and at least one dependent clause.
When the final whistle blew, the crowd cheered, and the players lifted their coach into the air.

Vary sentence length

Mix short, medium and long sentences.

  • Short sentences create emphasis, tension or impact. It was over.
  • Long sentences convey detail, flow and complex relationships.

A short sentence after several long ones grabs attention:

For three months, Mara had trained every morning before school, running hills in the dark and swimming laps while her friends slept. She finished last.

Vary sentence beginnings

Avoid starting every sentence with the subject. Try:

Begin with… Example
An adverb Slowly, the door creaked open.
A prepositional phrase Under the old bridge, a fox waited.
A dependent clause Although she was nervous, Priya stepped onto the stage.
A participial phrase Exhausted from the climb, the hikers rested.
An infinitive phrase To win the competition, we practised daily.
A transition Nevertheless, the team refused to give up.

Participial phrases

A participial phrase begins with a verb form ending in -ing or -ed and describes a noun.

Grinning broadly, Leo accepted the award.
Frightened by the noise, the cat dashed under the bed.

Caution: make sure the phrase describes the right noun (see dangling modifiers).

Sentence combining

Sentence combining turns short, related sentences into one fluent sentence.

Short sentences: The museum is old. It is in the city centre. It has dinosaur fossils.

  • With an adjective and prepositional phrase: The old museum in the city centre has dinosaur fossils.
  • With a relative clause: The museum, which is in the city centre, has dinosaur fossils.
  • With an appositive: The museum, an old building in the city centre, displays dinosaur fossils.

Combining techniques

  1. Coordinating conjunctions: and, but, so, or, yet
  2. Subordinating conjunctions: because, although, when, since, while, if
  3. Relative pronouns: who, which, that, whose
  4. Appositives: a noun phrase that renames another noun
  5. Participial phrases
  6. Compound subjects or verbs: Mia and Jun ran and jumped.

Purposeful variety

Variety is not random. Match structure to meaning:

  • Use complex sentences to show relationships (cause, contrast, time).
  • Use parallel structure to list or compare ideas with balance.
  • Use short sentences for emphasis or dramatic moments.
  • Use questions occasionally to engage readers.

Revising for variety

  1. Underline the first three or four words of each sentence. Are many beginnings the same?
  2. Count words per sentence. Are most sentences about the same length?
  3. Label structures (S, CD, CX, CC). Is one type dominant?
  4. Revise: combine, split, rearrange or add an introductory element.
  5. Read aloud to hear rhythm.

Worked example

Original: I went to the market. I bought apples. The apples were red. Then I went home. I made a pie. It was delicious.

Revised: At the market, I bought a bag of bright red apples. When I got home, I baked them into a pie. It was delicious.

Common mistakes

  • Overusing long sentences, which can confuse readers.
  • Creating run-ons or comma splices while combining.
  • Dangling modifiers with introductory phrases.
  • Variety for its own sake, which can make writing awkward.
  • Starting too many sentences with “And” or “So.”

Try it yourself

  1. Combine using a dependent clause: The power went out. We played board games.
  2. Combine using an appositive: Dr. Singh spoke at our school. She is a marine biologist.
  3. Begin with a participial phrase: The runner crossed the finish line. She was gasping for air.
  4. Label the structure: Although the bus was late, we arrived on time, and the show started promptly.

Answers: 1. When the power went out, we played board games. 2. Dr. Singh, a marine biologist, spoke at our school. 3. Gasping for air, the runner crossed the finish line. 4. Compound-complex.

Study tip

Choose a paragraph from a favourite author and analyze it: count sentence lengths, label structures and note beginnings. Then try imitating the pattern with your own topic. Imitation is one of the fastest ways to develop style.

Quick recap

  • Sentence variety improves rhythm, clarity and voice.
  • Use simple, compound, complex and compound-complex sentences.
  • Vary length: short for emphasis, long for detail.
  • Vary beginnings with adverbs, phrases and clauses.
  • Combine related sentences and revise by reading aloud.