the sentence

                                              Simple  sentence   

A simple sentence , also called  dan independent clause, contains a subjectct and a verb, and  it expresses a complete trought.  

         Note: in the following simple sentence subjects are in black and verbs are in  italics.

Example:

*some students like to study in the morning.

*juan and Arturo play football every ofternoon.

*many of the students at the uny have understood the new grammar rules.

The three examples above are all simple sentences.  Note that sentence B contains a compound subject, and sentence C contains a compound verb.  Simple sentences, therefore, contain a subject and verb and express a complete thought, but they can also contain a compound subjects or verbs.

                               

Compound sentence

A compound sentence contains two independent clauses joined by a coordinator.the coordinators are as follows: and, or, but, and punctuation marks as :comma(,), punt(.), and punt and comma(;) between other negative conective called coordinating conjuctions.

   

Note: in the following compound sentence subjects are in  black and subjects are conjugated verbs are in italics.

Examples:

*Alicia goes to the library and studies every day

*I tried to speak Spanish, and my friends tried to speak English

*Alejandro played football, so maria went shopping

*alejandro played football, for maria went shopping

The last examples are compound sentence. note the first sentence, the subject is “Alicia” and the next two conjugated verbs, is relevant  about the subject. The next three sentences contain differnts subjects each performs a different action, but keeping a close relationship both actions.

     Complex  Sentence

A complex  sentence is the kind of prayer consisting of a simple sentence (independent  prayer) and one or more clauses (dependent clauses). usually bind clauses independent prayer by an element called subordinate conjunction. (because, since, although, if, and many many more) or pronoun, adjective or adverb relative (who, whom, which, where, how)

Note: in the following complex sentence the subject are in black and the conjugated verbs are in italics

Examples:

*When he handed in his homework, he forgot to give the teacher the last page. 

*The teacher returned the homework after she noticed the error.

* The students are studying because they have a test tomorrow.

* After they finished studying, Juan and Maria went to the movies.

* Juan and Maria went to the movies after they finished studying.

When a complex sentence begins with a subordinator such as sentences 1 and 4, a comma is required at the end of the dependent clause. When the independent clause begins the sentence with subordinators in the middle as in sentences 2, 3, and 5, no comma is required. If a comma is placed before the subordinators in sentences 2, 3, and 5, it is wrong.

Note that sentences 4 and E are the same except sentence 4 begins with the dependent clause which is followed by a comma, and sentence E begins with the independent clause which contains no comma.  The comma after the dependent clause in sentence 4 is required, and experienced listeners of English will often hear a slight pause there.  In sentence 5, however, there will be no pause when the independent clause begins the sentence.

(Compound/complex sentence)

Compound/complex sentence is the kind of sentence consists of two or more simple sentences (independent sentences) and one or more dependent clauses (clauses)

note: in the following Compound/complex sentence the subject are in black and the conjugated verbs are in italics. Emphasizes the elements of conjunctions and clauses encerremos in bracket

Examples:

 I admire  my mother, but she doesn´t admire me, although I try hard to impress her.

(What you gave me in my birthday) brings me good memories and that makes me happy.