| 
Simple  | 
Complex | 
Compound | 
| 
1)Despite of / in spite of + possessive of sub +
  (verb + ing) , next clause  | 
Though/although+ sub+ be verb/ verb , next clause 
## If (though/ although) remains at the middle of
  the sentence no comma (,) will be used. | 
Sub + verb + adverb + but + ……………….. | 
| 
2)Sub + (relative pronoun should be demolished) +
  verb + ing + ………….. | 
Sub
  + relative pronoun (that, when, which, whichever,
  whichever, who, whoever, whosoever, whom, whomever, and whomsoever whose,
  whosesoever whatever, whatsoever) + main verb + ………….. | |
| 
3)Sub
  + (relative pronoun  and auxiliary verb
  should be demolished) + verb + ing + | 
Sub
  + relative pronoun + auxiliary verb + main verb + ………. | |
| 
4)Sub
  + (relative pronoun and auxiliary verb should be demolished) + past
  participle form of main verb + ………. | 
Sub
  + relative pronoun + be verb + past participle form of main verb + ………. | |
| 
5)Sub
  succeeded by the adjective + verb + ………. | 
Sub
  + (who/ which/ that) + adjective + verb + ……….. | |
| 
6)As
  same as before relative pronoun + (relative pronoun and auxiliary verb are
  omitted) + verb + ing + ………….. | 
Sub
  + verb + object + relative pronoun (who/ which/ that) +………  | |
| 
7)(
  Verb + ing ) + obj. + Comma (,) + Sub + ……….. | 
Since
  / as / when + sub + verb + obj. , sub (pronoun) + ……….. | 
Sub
  + verb + and + ………. | 
| 
8)Sub + (be + ing) + extension before comma, +
  another sub + ………….. | 
 Since / as
  / when + sub + (be verb) + obj., another sub + ……….. | |
| 
9)Because of + possessive + (verb + ing) + comma +
  ……….. | 
Since / as + same sub in the two clause  | |
| 
10)At / in + (day/age/ season/ at the time of) +
  …………… | 
When + sub + verb + (day/ age / season/) + comma +
  …………. | |
| 
11)Sub + verb + (what is omitted) + ………… | 
Sub + verb + what + possessive+ ….. | |
| 
12)For negative : (without + verb +ing )  
For positive: By + …..same as  | 
If + sub + verb + adverb + comma + sub + ……….. | 
Verb + adverb + and + ………. | 
| 
13)In order to  | 
So that  | |
| 
14)Certainly/ Surely/ Suddenly + sub + ………… | 
It is certain / it is sure / it is sudden + that
  ………. | 
Examples
1)   
Simple : Despite
/ In spite of his being weak, he went to school.
Complex: Though
he was weak, he went to school.
Compound : He
was weak but went to school.
2)   
Simple :  The tree standing before the house has grown
old.
Complex: The
tree that stands before the house has grown old.
3)   
Simple :  The boy begging from door to door is an
orphan.
Complex: The boy
who is begging from door to door is an orphan.
4)   
Simple : The
book published last year god good market.
Complex: The
book which was published last year god good market.
5)   
Simple : An
Industrious boy can shine in life.
Complex: The boy
who is industrious can shine in life.
6)   
Simple : The
writer lived in a cabin belonging to the orphanage.
Complex: The
writer lived in a cabin that belonged to the orphanage.
7)   
Simple : Killing
the bird, the old man brought bad luck to the crew.
Complex: Since
the old man killed the bird, he brought bad luck to the crew.
Compound: The
old man killed the bird and brought bad luck to the crew.
8)   
Simple : The
weather being very cold, there were no birds or animals in the snow covered
country.
Complex: Since
the weather was very cold, there were no birds or animals in the snow covered
country.
9)   
Simple : Because
of his being small, he could not work hard.
Complex: Since
he was small, he could not work hard.
10)                      
Simple : At
daylight I was half awakened by the sound of chopping.
Complex: When it
was daylight, I was half awakened by the sound of chopping.
11)                      
Simple : I know
his name.
Complex: I know
what his name is.
12)                      
Simple : Without
working hard, you will not prosper in life.
Complex: If you
do not work hard, you will not prosper in life.
Compound : Work
hard or you will not prosper in life.
Simple: By
working hard , you can succeed in life.
Complex : If you
work hard, you can succeed in life.
Compound: Work
hard and you will succeed in life.
13)                      
Simple : I read
more in order to make a good result.
Complex: I read
more so that I make a good result.
14)                      
Simple : certainly
he will come.
Complex : It is
certain that  he will come.
Simple: Surely
he has done it.
Complex: It is
sure that he has done it.
               More Examples 
1)   
Simple: I know
him to be a poet.
Complex: I know that he is a poet.
2)   
 Simple: I saw him reading.
Complex: I saw that he was reading.
 

 
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