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Compound-Complex Sentence

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What is a Compound-Complex sentence?

The three main types of sentences based on clause structure are simple compound and complex sentences. The fourth sentence type, the compound-complex sentence is made by combining elements of compound sentence and complex sentence.

It is the most fancy and sophisticated type of sentence in English grammar.

Complexity of the sentence is high in terms of structure compared to other sentences like simple, compound and complex sentence. 

In other words we can say a compound-complex sentence is a combination of two or more sentences joined by a conjunction in which one must be a complex sentence.

Let’s understand the structure of compound complex sentence.

Compound Sentence: Independent clauses

Complex Sentence: 1 Independent clause + Dependent(s)

Compound –Complex Sentence: Independent clauses + Dependent clauses

So basically these types of sentences have one compound sentence and one complex sentence in it.

Let’s take some examples

  1. After the rained stopped, I went outside and saw the rainbow.

Here we have combination of two kinds of sentences.

After the rained stopped, I went outside: Complex Sentence

I went outside and saw the rainbow: Compound Sentence

  1. People who read comics rarely read novels; they are often find books so difficult.

Who read comics: Dependent clause

People rarely read novels: Independent clause

They often find books difficult: Independent clause

3.Tom goes for football classes and Jack goes for cricket, but Gary is not interested in sports.

Tom goes for football classes: Independent clause

but Hary is not interested in sports: Dependent clause

and Jack goes for cricket: Dependent clause

Here,

Tom goes for football classes and Jack goes for cricket: Compound sentence

Tom goes for football classes: Simple Sentence

Jack goes for cricket but Hary is not interested in sports: compound sentence

4. While it was raining, John went to shop and bought his breakfast.

While it was raining: Dependent clause

and bought his breakfast: Dependent clause

John went to shop: Independent clause

Here,

While it was raining, John went to shop: Complex Sentence

John went to shop and bought his breakfast: Compound Sentence

John went to shop: Simple Sentence

Let’s see complex compound sentence structure in a different form.

Independent clause + Coordinating Conjunction + Complex Sentence

1.He loves parties, but he can’t attend today as he is sick.

Here,

He loves parties: Independent clause

But: Coordinating Conjunction

he can’t attend today as he is sick: Complex Sentence

We can combine several dependent clauses or independent clauses in different ways to form a complex-compound sentence but we should have correct punctuation and right linking words in place.

Complex Sentence + Coordinating Conjunction + Independent clause

2.When my roomies come home from work, Parth cleans the vessels and Rina cooks dinner.

In above sentence the complex- compound sentence structure changes.

When my roomies come home from work, Parth cleans the vessels: Complex Sentence

And: Coordinating Conjunction

Rina cooks dinner: Independent clause

We can also say:

Parth cleans the vessels and Rina cooks dinner – Compound Sentence

So here we can make Simple sentence, compound sentence and a complex sentence from a complex- compound sentence like than from a simple sentence, a compound sentence and a complex sentence we can form a complex compound sentence.

Form sentences from Complex-compound sentence

Complex –compound Sentence

Though it was difficult to drive in rain, still he drove till the bus stop, and picked her up.

Simple sentence

It was difficult to drive in rain

Compound Sentence

he drove till the bus stop and picked her up.

Complex Sentence

Though it was difficult to drive in rain, still he drove till the bus stop

Summary:

Simple sentence

Contains Subject + verb

Compound Sentence

Contains Two clauses connected with one conjunction

Complex Sentence

Contains One subordinate clause and one main clause

Complex -compound Sentence

Contains one compound sentence and one complex sentence