There are four kinds of sentences according to form. These are the following:
Simple Sentence-It contains one independent section.
Example: He wants to write a song for his wife.
Compound Sentence-It contains two or more independent clauses
Example: The guys are playing basketball and the girls are playing tennis.
Complex Sentence-It contains one independent clause and one or more dependent clauses.
Example: Although she is not very pretty, she is smart.
Compound-Complex Sentence-It contains two or more independent clauses and one or more dependent clauses.
Example: I like the guy that I met recently, but he already has a girlfriend.
Kinds of Sentences According to Use :
There are four types of sentences according to use. These are the following:
Declarative Sentence-It states a fact and ends with a period.
Example: He can sketch very well.
Imperative Sentence-It gives a control or a request.
Example: Please take care of her for me.
Interrogative Sentence-It asks a question.
Example: What are you looking for?
Exclamatory Sentence-It denotes a very strong feeling.
Example: Watch out.