Definition

A compound-complex sentence is a sentence that has two or more independent clauses and at least one dependent clause. 

An independent clause is a clause that can stand alone as a sentence, whereas a dependent clause cannot. 

A dependent clause needs an independent clause to complete its meaning. 

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Why are compound complex sentences important?

One of the benefits of knowing how to construct a compound-complex sentence is that it allows you to express more than one idea in a single sentence. This can be useful when you want to communicate a lot of information in a single sentence without sounding repetitive or monotonous.

Another benefit of compound-complex sentences is that they can make your writing sound more sophisticated. This is because they require a higher level of grammatical knowledge to construct correctly. As such, they can make your writing appear more intelligent and thought-out.

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Examples

• The dog barked and the cat meowed but the bird remained silent.
• Even though I am failing, I will not give up.
• I will go to the party if you go with me.
• I'm going to the store, and I'm going to pick up some milk.
• After I finish my work, I'm going to go home.
• Unless you finish your work, you can't go home.
• I'm going to the store to pick up some milk, and I'm going to go home after I finish my work.
• Although she was tired, she decided to stay up and study for her test.
• Because he was running late, he didn't have time to eat breakfast.
• If it rains tomorrow, the game will be canceled.
• Since he was the only one who knew how to fix the printer, the meeting was canceled.
• Unless you study, you will fail the test.
• When he got home, he realized he had left his laptop at the library.

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Conclusion

In other words, a compound-complex sentence is made up of a combination of simple and complex sentences.

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