Best English Grammar
Those which makes statements or assertions; as
Humpty Dumpty sat on a wall.
Those which ask questions; as
where do you live?
Those which express commands, requests, or entreaties; as
Be quite
Those which express strong feelings; as
How cold the night is!
What a shame
A sentence that makes as statement or assertion is called a Declaration or Assertive.
A sentence that asks a question is called Interrogative sentence.
A sentence that expresses command or an entreaty is called an Imperative sentence.
A sentence that expresses a strong feeling is called an exclamatory sentence.