Content introduction chapter composite sentence in English Using composite sentence in sentence chapter the composite sentence as a polypredicative construction Using the composite sentence as a polypredicative construction conclusion summary references

Summary
That there are three types of composite sentences in languages is contemporary approach to this issue. Historically not all the grammarians were unanimous in this respect. According to it H. Sweet there are structurally two types of sentences: simple and complex. “Two or more sentences may be joined together to form a single complex sentence … In every complex there is one independent clause, called the principal clause together with at least one dependent clause, which stands in the relation of adjunct to the principal clause. The dependent clause may be either coordinate or subordinate”.
Examples:
Principal clause
1.You shall walk, and I will ride.
Coordinate clause
Co-complex
Principal clause
2. You are the man I want.
Subordinate clause
Sub-complex
As one can see in H. Sweets conception there’s no place for compound sentences since even so-called “cocomplex” there’s subordination.
One of the representatives of structural linguists Ch. Fries considers two kinds of composite sentences: sequence sentences and included sentences. The sequence sentences consist of situation sentence and sequence sentence.
Example:1. The government has set up an agency called Future builders.
2. It has a certain amount of fund to make loans to social enterprises.
These two sentences are connected with each-other. The first sentence is a situation sentence and the second one is a sequence sentence since it develops the idea of the situation sentence.

References

1. 
   Huddleston, Rodney (1984). Introduction to the Grammar of English. Cambridge University Press. ISBN 978-0-521-29704-2.
   
2. 
   Rozakis, Laurie (2003). The Complete Idiot's Guide to Grammar and Style. Alpha. pp. 167–168. ISBN 1-59257-115-8.
   
3. 
   Scheib, Henry (1849). The Thought and Its Expression: A Grammar After the System Introduced Into the Best Schools of Germany.
   
4. 
   "Compound Sentences".
   
5. 
   "Homogenous members of a sentence (in Russian)".
   
6. 
   Sinclair, Christine (2007). Grammar: Getting it Right. McGraw-Hill. ISBN 978-0-335-22008-3.
   
7. 
   "Fragments". Pasco-Hernando State College. Retrieved 13 August 2021.
   
8. 
   e.g. H. W. Fowler in Modern English Usage on BUT, p. 60 in the first edition.
   
9. 
   The Chicago Manual of Style (16th ed.). Chicago: University of Chicago Press. 2010. p. 257. ISBN 978-0-226-10420-1.
   
10. 
    Berry, Chris; Brizee, Allen (2006-08-31). "Runons – Comma Splices Fused Sentences". Archived from the original on June 12, 2018. Retrieved 2008-01-24.
    
11. 
    "Run-on Sentences, Comma Splices". Retrieved 2008-01-24.
    
12. 
    "English Grammar Lesson - Run-Ons! - ELC". ELC - English Language Center. 2017-05-19. Retrieved 2017-09-14.
    
13. 
    Hairston, Maxine; Ruszkiewicz, John J; Friend, Christy (1998). The Scott Foresman Handbook for Writers (5th ed.). New York: Longman. p. 509. ISBN 9780321002488.
    
14. 
    The American Heritage Dictionary of the English Language
    

1^ Huddleston, Rodney (1984). Introduction to the Grammar of English. Cambridge University Press. ISBN 978-0-521-29704-2.

2^ Rozakis, Laurie (2003). The Complete Idiot's Guide to Grammar and Style. Alpha. pp. 167–168. ISBN 1-59257-115-8

1. 
   3^ Scheib, Henry (1849). The Thought and Its Expression: A Grammar After the System Introduced Into the Best Schools of Germany.