Declarative: Makes a statement, ends with a period.
I answered a question today.
Interrogative: Asks a question, ends with a question mark.
Do you have a question?
Imperative: Gives a command or makes a request, ends with a period.
Ask a question if you don't understand.
Exclamatory: Expresses strong feeling or emotions, ends with exclamation mark.
I hate you!
