Complex Sentence*

Complex Sentences

April 4, 2019

Native English Instructor

Written by Douglas Shaw

A sentence is the largest unit of any language. In English, it begins with a capital letter and ends with a period (.)(full-stop), or a question mark (?), or an exclamation mark (!).

The sentence is generally defined as a word or a group of words that expresses a thorough idea by giving a statement/order, or asking a question, or exclaiming.

A complete English sentence must have three characteristics:

  • First, in written form, a sentence begins with a capital letter and ends with a period (i.e., a full stop) [.], a note of interrogation (i.e., a question mark) [?], or a note of exclamation (i.e., an exclamation mark) [!].
  • Second, it must express a complete thought.
  • Third, it must contain at least one subject (hidden/visible) and one verb comprising an independent clause. (An independent clause contains an independent subject and verb and expresses a complete thought.)


complex sentence also has more than one clause but of one them must be an independent clause and the other/others must be (a) dependent clause(es). There are also some particular connectors for the clauses of a complex sentence to be connected.


I know that you always wanted to be a doctor. (Here, a dependent clause is followed by a connector and an independent clause. The other way around is also possible.)

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